Cysylltau cyflym:
yn ôl math o eiddo
yn ôl statws y prynwr
yn ôl statws cyllido
yn ôl statws yr eiddo
Ystadegau Prisiau Tai
Math o eiddo
Tracio’r mynegai, pris cyfartalog a’r newid misol a blynyddol ar gyfer pob math o eiddo neu ganolbwyntio ar un penodol.
Dyddiad
|
Pob math o eiddo
|
Fflatiau a fflatiau deulawr
|
Ebrill 1992
|
57065.0
|
|
Mai 1992
|
57065.0
|
|
Mehefin 1992
|
57065.0
|
|
Gorffennaf 1992
|
57790.0
|
|
Awst 1992
|
57790.0
|
|
Medi 1992
|
57790.0
|
|
Hydref 1992
|
56283.0
|
|
Tachwedd 1992
|
56283.0
|
|
Rhagfyr 1992
|
56283.0
|
|
Ionawr 1993
|
54831.0
|
|
Chwefror 1993
|
54831.0
|
|
Mawrth 1993
|
54831.0
|
|
Ebrill 1993
|
55557.0
|
|
Mai 1993
|
55557.0
|
|
Mehefin 1993
|
55557.0
|
|
Gorffennaf 1993
|
57120.0
|
|
Awst 1993
|
57120.0
|
|
Medi 1993
|
57120.0
|
|
Hydref 1993
|
55334.0
|
|
Tachwedd 1993
|
55334.0
|
|
Rhagfyr 1993
|
55334.0
|
|
Ionawr 1994
|
56004.0
|
|
Chwefror 1994
|
56004.0
|
|
Mawrth 1994
|
56004.0
|
|
Ebrill 1994
|
56339.0
|
|
Mai 1994
|
56339.0
|
|
Mehefin 1994
|
56339.0
|
|
Gorffennaf 1994
|
56841.0
|
|
Awst 1994
|
56841.0
|
|
Medi 1994
|
56841.0
|
|
Hydref 1994
|
57065.0
|
|
Tachwedd 1994
|
57065.0
|
|
Rhagfyr 1994
|
57065.0
|
|
Ionawr 1995
|
56702.0
|
40450.0
|
Chwefror 1995
|
56594.0
|
40646.0
|
Mawrth 1995
|
56171.0
|
40161.0
|
Ebrill 1995
|
56568.0
|
40944.0
|
Mai 1995
|
56480.0
|
40389.0
|
Mehefin 1995
|
56289.0
|
40804.0
|
Gorffennaf 1995
|
57242.0
|
40312.0
|
Awst 1995
|
56732.0
|
39765.0
|
Medi 1995
|
56259.0
|
39839.0
|
Hydref 1995
|
55240.0
|
39185.0
|
Tachwedd 1995
|
55878.0
|
39842.0
|
Rhagfyr 1995
|
55524.0
|
39466.0
|
Ionawr 1996
|
55033.0
|
39108.0
|
Chwefror 1996
|
55316.0
|
39012.0
|
Mawrth 1996
|
55063.0
|
38653.0
|
Ebrill 1996
|
55822.0
|
39596.0
|
Mai 1996
|
56140.0
|
39735.0
|
Mehefin 1996
|
56601.0
|
40441.0
|
Gorffennaf 1996
|
57073.0
|
39966.0
|
Awst 1996
|
57951.0
|
40205.0
|
Medi 1996
|
57609.0
|
40244.0
|
Hydref 1996
|
57669.0
|
40076.0
|
Tachwedd 1996
|
58421.0
|
41009.0
|
Rhagfyr 1996
|
58964.0
|
41171.0
|
Ionawr 1997
|
59081.0
|
40980.0
|
Chwefror 1997
|
59684.0
|
41824.0
|
Mawrth 1997
|
59869.0
|
42019.0
|
Ebrill 1997
|
60358.0
|
42092.0
|
Mai 1997
|
61737.0
|
42930.0
|
Mehefin 1997
|
62774.0
|
43373.0
|
Gorffennaf 1997
|
64183.0
|
43926.0
|
Awst 1997
|
64667.0
|
44691.0
|
Medi 1997
|
65007.0
|
44781.0
|
Hydref 1997
|
66077.0
|
45524.0
|
Tachwedd 1997
|
65528.0
|
45323.0
|
Rhagfyr 1997
|
66206.0
|
45774.0
|
Ionawr 1998
|
66899.0
|
46061.0
|
Chwefror 1998
|
66739.0
|
47032.0
|
Mawrth 1998
|
66989.0
|
46219.0
|
Ebrill 1998
|
68585.0
|
47073.0
|
Mai 1998
|
69688.0
|
48375.0
|
Mehefin 1998
|
70045.0
|
48852.0
|
Gorffennaf 1998
|
70958.0
|
48498.0
|
Awst 1998
|
71126.0
|
49089.0
|
Medi 1998
|
71680.0
|
49453.0
|
Hydref 1998
|
71563.0
|
49602.0
|
Tachwedd 1998
|
71198.0
|
49735.0
|
Rhagfyr 1998
|
71285.0
|
50053.0
|
Ionawr 1999
|
71966.0
|
49706.0
|
Chwefror 1999
|
72027.0
|
50428.0
|
Mawrth 1999
|
71939.0
|
50582.0
|
Ebrill 1999
|
73545.0
|
50871.0
|
Mai 1999
|
74291.0
|
51646.0
|
Mehefin 1999
|
75804.0
|
52811.0
|
Gorffennaf 1999
|
77158.0
|
53149.0
|
Awst 1999
|
78190.0
|
53628.0
|
Medi 1999
|
79917.0
|
55529.0
|
Hydref 1999
|
80391.0
|
56268.0
|
Tachwedd 1999
|
82173.0
|
57527.0
|
Rhagfyr 1999
|
83819.0
|
59523.0
|
Ionawr 2000
|
84192.0
|
58511.0
|
Chwefror 2000
|
83989.0
|
58969.0
|
Mawrth 2000
|
85921.0
|
59987.0
|
Ebrill 2000
|
89206.0
|
62882.0
|
Mai 2000
|
91172.0
|
64257.0
|
Mehefin 2000
|
91593.0
|
64774.0
|
Gorffennaf 2000
|
93781.0
|
64813.0
|
Awst 2000
|
95082.0
|
67102.0
|
Medi 2000
|
95568.0
|
67285.0
|
Hydref 2000
|
94454.0
|
65896.0
|
Tachwedd 2000
|
95100.0
|
66948.0
|
Rhagfyr 2000
|
96195.0
|
68509.0
|
Ionawr 2001
|
96628.0
|
68293.0
|
Chwefror 2001
|
96649.0
|
68312.0
|
Mawrth 2001
|
98009.0
|
69390.0
|
Ebrill 2001
|
99735.0
|
69842.0
|
Mai 2001
|
101764.0
|
71937.0
|
Mehefin 2001
|
102969.0
|
73803.0
|
Gorffennaf 2001
|
105160.0
|
73625.0
|
Awst 2001
|
108078.0
|
76514.0
|
Medi 2001
|
108535.0
|
77069.0
|
Hydref 2001
|
109230.0
|
76891.0
|
Tachwedd 2001
|
110583.0
|
79251.0
|
Rhagfyr 2001
|
111665.0
|
81200.0
|
Ionawr 2002
|
112374.0
|
79583.0
|
Chwefror 2002
|
113392.0
|
81159.0
|
Mawrth 2002
|
115809.0
|
83336.0
|
Ebrill 2002
|
120065.0
|
86739.0
|
Mai 2002
|
123090.0
|
88701.0
|
Mehefin 2002
|
125088.0
|
91489.0
|
Gorffennaf 2002
|
129419.0
|
92544.0
|
Awst 2002
|
132917.0
|
95693.0
|
Medi 2002
|
134094.0
|
96344.0
|
Hydref 2002
|
137098.0
|
98892.0
|
Tachwedd 2002
|
140637.0
|
102600.0
|
Rhagfyr 2002
|
141858.0
|
104757.0
|
Ionawr 2003
|
144866.0
|
105733.0
|
Chwefror 2003
|
144848.0
|
106116.0
|
Mawrth 2003
|
145968.0
|
107094.0
|
Ebrill 2003
|
149010.0
|
109135.0
|
Mai 2003
|
149708.0
|
108929.0
|
Mehefin 2003
|
149449.0
|
111021.0
|
Gorffennaf 2003
|
153579.0
|
111115.0
|
Awst 2003
|
154232.0
|
111979.0
|
Medi 2003
|
154002.0
|
111763.0
|
Hydref 2003
|
155412.0
|
112773.0
|
Tachwedd 2003
|
156131.0
|
113125.0
|
Rhagfyr 2003
|
157713.0
|
116605.0
|
Ionawr 2004
|
159710.0
|
116603.0
|
Chwefror 2004
|
160205.0
|
117495.0
|
Mawrth 2004
|
161608.0
|
119228.0
|
Ebrill 2004
|
165136.0
|
120721.0
|
Mai 2004
|
166518.0
|
123096.0
|
Mehefin 2004
|
170031.0
|
126270.0
|
Gorffennaf 2004
|
172266.0
|
124840.0
|
Awst 2004
|
174609.0
|
127571.0
|
Medi 2004
|
175391.0
|
128981.0
|
Hydref 2004
|
175716.0
|
129720.0
|
Tachwedd 2004
|
175981.0
|
130436.0
|
Rhagfyr 2004
|
174955.0
|
129844.0
|
Ionawr 2005
|
175323.0
|
128242.0
|
Chwefror 2005
|
173555.0
|
127792.0
|
Mawrth 2005
|
173743.0
|
128205.0
|
Ebrill 2005
|
174294.0
|
127665.0
|
Mai 2005
|
177100.0
|
130210.0
|
Mehefin 2005
|
178067.0
|
131123.0
|
Gorffennaf 2005
|
179281.0
|
130406.0
|
Awst 2005
|
178969.0
|
130620.0
|
Medi 2005
|
179366.0
|
131272.0
|
Hydref 2005
|
178385.0
|
130855.0
|
Tachwedd 2005
|
178199.0
|
130563.0
|
Rhagfyr 2005
|
179512.0
|
134002.0
|
Ionawr 2006
|
178992.0
|
130527.0
|
Chwefror 2006
|
179220.0
|
132899.0
|
Mawrth 2006
|
180623.0
|
132609.0
|
Ebrill 2006
|
183445.0
|
133966.0
|
Mai 2006
|
185049.0
|
136177.0
|
Mehefin 2006
|
185328.0
|
135983.0
|
Gorffennaf 2006
|
189027.0
|
136671.0
|
Awst 2006
|
190703.0
|
137781.0
|
Medi 2006
|
190772.0
|
138272.0
|
Hydref 2006
|
192058.0
|
139771.0
|
Tachwedd 2006
|
192726.0
|
138950.0
|
Rhagfyr 2006
|
194903.0
|
142300.0
|
Ionawr 2007
|
194994.0
|
141207.0
|
Chwefror 2007
|
195405.0
|
143427.0
|
Mawrth 2007
|
197034.0
|
142921.0
|
Ebrill 2007
|
199474.0
|
144166.0
|
Mai 2007
|
201392.0
|
148145.0
|
Mehefin 2007
|
204908.0
|
149528.0
|
Gorffennaf 2007
|
206815.0
|
148754.0
|
Awst 2007
|
208231.0
|
149255.0
|
Medi 2007
|
209102.0
|
151386.0
|
Hydref 2007
|
208926.0
|
151417.0
|
Tachwedd 2007
|
209624.0
|
151984.0
|
Rhagfyr 2007
|
209409.0
|
153112.0
|
Ionawr 2008
|
207691.0
|
151131.0
|
Chwefror 2008
|
205848.0
|
149052.0
|
Mawrth 2008
|
203401.0
|
146892.0
|
Ebrill 2008
|
202149.0
|
145388.0
|
Mai 2008
|
204037.0
|
146970.0
|
Mehefin 2008
|
200939.0
|
144556.0
|
Gorffennaf 2008
|
200308.0
|
143488.0
|
Awst 2008
|
193182.0
|
138891.0
|
Medi 2008
|
188408.0
|
134128.0
|
Hydref 2008
|
183685.0
|
132107.0
|
Tachwedd 2008
|
178494.0
|
127838.0
|
Rhagfyr 2008
|
176835.0
|
126953.0
|
Ionawr 2009
|
175528.0
|
126832.0
|
Chwefror 2009
|
171619.0
|
124357.0
|
Mawrth 2009
|
168263.0
|
121332.0
|
Ebrill 2009
|
170921.0
|
122618.0
|
Mai 2009
|
173914.0
|
124909.0
|
Mehefin 2009
|
173800.0
|
123500.0
|
Gorffennaf 2009
|
178444.0
|
125316.0
|
Awst 2009
|
180570.0
|
126732.0
|
Medi 2009
|
182708.0
|
128396.0
|
Hydref 2009
|
182946.0
|
127683.0
|
Tachwedd 2009
|
184531.0
|
128989.0
|
Rhagfyr 2009
|
185387.0
|
129679.0
|
Ionawr 2010
|
187910.0
|
127253.0
|
Chwefror 2010
|
188039.0
|
128323.0
|
Mawrth 2010
|
188188.0
|
130134.0
|
Ebrill 2010
|
191141.0
|
131515.0
|
Mai 2010
|
191996.0
|
132299.0
|
Mehefin 2010
|
191586.0
|
131793.0
|
Gorffennaf 2010
|
194838.0
|
131402.0
|
Awst 2010
|
194104.0
|
130682.0
|
Medi 2010
|
195063.0
|
132939.0
|
Hydref 2010
|
191946.0
|
130645.0
|
Tachwedd 2010
|
191273.0
|
130887.0
|
Rhagfyr 2010
|
190404.0
|
130055.0
|
Ionawr 2011
|
189424.0
|
128634.0
|
Chwefror 2011
|
187264.0
|
128534.0
|
Mawrth 2011
|
188535.0
|
128726.0
|
Ebrill 2011
|
189403.0
|
129310.0
|
Mai 2011
|
189682.0
|
131585.0
|
Mehefin 2011
|
189105.0
|
129979.0
|
Gorffennaf 2011
|
191792.0
|
131589.0
|
Awst 2011
|
192616.0
|
129444.0
|
Medi 2011
|
190805.0
|
128921.0
|
Hydref 2011
|
190749.0
|
129001.0
|
Tachwedd 2011
|
191616.0
|
131342.0
|
Rhagfyr 2011
|
190795.0
|
129758.0
|
Ionawr 2012
|
191894.0
|
129008.0
|
Chwefror 2012
|
190306.0
|
128378.0
|
Mawrth 2012
|
189084.0
|
129431.0
|
Ebrill 2012
|
192846.0
|
131872.0
|
Mai 2012
|
193690.0
|
131575.0
|
Mehefin 2012
|
193515.0
|
130601.0
|
Gorffennaf 2012
|
196166.0
|
132574.0
|
Awst 2012
|
196204.0
|
131779.0
|
Medi 2012
|
195032.0
|
131676.0
|
Hydref 2012
|
195730.0
|
132081.0
|
Tachwedd 2012
|
195007.0
|
131871.0
|
Rhagfyr 2012
|
194059.0
|
130340.0
|
Ionawr 2013
|
194209.0
|
129989.0
|
Chwefror 2013
|
192418.0
|
129694.0
|
Mawrth 2013
|
196235.0
|
132319.0
|
Ebrill 2013
|
196687.0
|
132580.0
|
Mai 2013
|
195928.0
|
132683.0
|
Mehefin 2013
|
198110.0
|
133023.0
|
Gorffennaf 2013
|
201279.0
|
135441.0
|
Awst 2013
|
202193.0
|
135008.0
|
Medi 2013
|
202026.0
|
134845.0
|
Hydref 2013
|
203714.0
|
136664.0
|
Tachwedd 2013
|
202626.0
|
136160.0
|
Rhagfyr 2013
|
207270.0
|
141078.0
|
Ionawr 2014
|
205792.0
|
139066.0
|
Chwefror 2014
|
207358.0
|
139830.0
|
Mawrth 2014
|
208325.0
|
140929.0
|
Ebrill 2014
|
212541.0
|
143398.0
|
Mai 2014
|
216195.0
|
146210.0
|
Mehefin 2014
|
218023.0
|
147261.0
|
Gorffennaf 2014
|
221817.0
|
149152.0
|
Awst 2014
|
224167.0
|
150295.0
|
Medi 2014
|
226243.0
|
152818.0
|
Hydref 2014
|
227303.0
|
154026.0
|
Tachwedd 2014
|
226352.0
|
153250.0
|
Rhagfyr 2014
|
227176.0
|
153978.0
|
Ionawr 2015
|
228276.0
|
154881.0
|
Chwefror 2015
|
229383.0
|
156308.0
|
Mawrth 2015
|
229497.0
|
155684.0
|
Ebrill 2015
|
231912.0
|
157268.0
|
Mai 2015
|
235052.0
|
159981.0
|
Mehefin 2015
|
236143.0
|
159587.0
|
Gorffennaf 2015
|
241817.0
|
163672.0
|
Awst 2015
|
244547.0
|
165203.0
|
Medi 2015
|
247282.0
|
167222.0
|
Hydref 2015
|
248467.0
|
167645.0
|
Tachwedd 2015
|
251803.0
|
170365.0
|
Rhagfyr 2015
|
252915.0
|
171345.0
|
Ionawr 2016
|
255235.0
|
173299.0
|
Chwefror 2016
|
255450.0
|
173595.0
|
Mawrth 2016
|
259686.0
|
176991.0
|
Ebrill 2016
|
259733.0
|
177035.0
|
Mai 2016
|
264377.0
|
183376.0
|
Mehefin 2016
|
267333.0
|
183447.0
|
Gorffennaf 2016
|
270678.0
|
185361.0
|
Awst 2016
|
271151.0
|
186006.0
|
Medi 2016
|
273097.0
|
186766.0
|
Hydref 2016
|
272589.0
|
187073.0
|
Tachwedd 2016
|
273382.0
|
187969.0
|
Rhagfyr 2016
|
275945.0
|
189962.0
|
Ionawr 2017
|
275049.0
|
188492.0
|
Chwefror 2017
|
277280.0
|
193683.0
|
Mawrth 2017
|
275435.0
|
190451.0
|
Ebrill 2017
|
279497.0
|
193240.0
|
Mai 2017
|
282054.0
|
197168.0
|
Mehefin 2017
|
283381.0
|
196877.0
|
Gorffennaf 2017
|
287743.0
|
199513.0
|
Awst 2017
|
287534.0
|
198454.0
|
Medi 2017
|
288342.0
|
197935.0
|
Hydref 2017
|
288473.0
|
196557.0
|
Tachwedd 2017
|
287143.0
|
197239.0
|
Rhagfyr 2017
|
289022.0
|
197990.0
|
Ionawr 2018
|
288947.0
|
197759.0
|
Chwefror 2018
|
288286.0
|
196787.0
|
Mawrth 2018
|
286499.0
|
194487.0
|
Ebrill 2018
|
287656.0
|
194338.0
|
Mai 2018
|
288222.0
|
193791.0
|
Mehefin 2018
|
289469.0
|
195891.0
|
Gorffennaf 2018
|
293936.0
|
197352.0
|
Awst 2018
|
294035.0
|
197437.0
|
Medi 2018
|
292574.0
|
195820.0
|
Hydref 2018
|
293045.0
|
197003.0
|
Tachwedd 2018
|
293428.0
|
195444.0
|
Rhagfyr 2018
|
290870.0
|
196244.0
|
Ionawr 2019
|
288659.0
|
191789.0
|
Chwefror 2019
|
289832.0
|
194058.0
|
Mawrth 2019
|
286802.0
|
191281.0
|
Ebrill 2019
|
287986.0
|
191527.0
|
Mai 2019
|
288711.0
|
191448.0
|
Mehefin 2019
|
288342.0
|
191894.0
|
Gorffennaf 2019
|
291364.0
|
194479.0
|
Awst 2019
|
290519.0
|
191377.0
|
Medi 2019
|
291814.0
|
194712.0
|
Hydref 2019
|
290903.0
|
192326.0
|
Tachwedd 2019
|
288880.0
|
189406.0
|
Rhagfyr 2019
|
290569.0
|
191762.0
|
Ionawr 2020
|
288877.0
|
189845.0
|
Dyddiad
|
Pob math o eiddo
|
Fflatiau a fflatiau deulawr
|
Ebrill 1992
|
|
|
Mai 1992
|
|
|
Mehefin 1992
|
|
|
Gorffennaf 1992
|
|
|
Awst 1992
|
|
|
Medi 1992
|
|
|
Hydref 1992
|
|
|
Tachwedd 1992
|
|
|
Rhagfyr 1992
|
|
|
Ionawr 1993
|
|
|
Chwefror 1993
|
|
|
Mawrth 1993
|
|
|
Ebrill 1993
|
-2.6
|
|
Mai 1993
|
-2.6
|
|
Mehefin 1993
|
-2.6
|
|
Gorffennaf 1993
|
-1.2
|
|
Awst 1993
|
-1.2
|
|
Medi 1993
|
-1.2
|
|
Hydref 1993
|
-1.7
|
|
Tachwedd 1993
|
-1.7
|
|
Rhagfyr 1993
|
-1.7
|
|
Ionawr 1994
|
2.1
|
|
Chwefror 1994
|
2.1
|
|
Mawrth 1994
|
2.1
|
|
Ebrill 1994
|
1.4
|
|
Mai 1994
|
1.4
|
|
Mehefin 1994
|
1.4
|
|
Gorffennaf 1994
|
-0.5
|
|
Awst 1994
|
-0.5
|
|
Medi 1994
|
-0.5
|
|
Hydref 1994
|
3.1
|
|
Tachwedd 1994
|
3.1
|
|
Rhagfyr 1994
|
3.1
|
|
Ionawr 1995
|
1.2
|
|
Chwefror 1995
|
1.0
|
|
Mawrth 1995
|
0.3
|
|
Ebrill 1995
|
0.4
|
|
Mai 1995
|
0.2
|
|
Mehefin 1995
|
-0.1
|
|
Gorffennaf 1995
|
0.7
|
|
Awst 1995
|
-0.2
|
|
Medi 1995
|
-1.0
|
|
Hydref 1995
|
-3.2
|
|
Tachwedd 1995
|
-2.1
|
|
Rhagfyr 1995
|
-2.7
|
|
Ionawr 1996
|
-2.9
|
-3.3
|
Chwefror 1996
|
-2.3
|
-4.0
|
Mawrth 1996
|
-2.0
|
-3.8
|
Ebrill 1996
|
-1.3
|
-3.3
|
Mai 1996
|
-0.6
|
-1.6
|
Mehefin 1996
|
0.6
|
-0.9
|
Gorffennaf 1996
|
-0.3
|
-0.9
|
Awst 1996
|
2.2
|
1.1
|
Medi 1996
|
2.4
|
1.0
|
Hydref 1996
|
4.4
|
2.3
|
Tachwedd 1996
|
4.6
|
2.9
|
Rhagfyr 1996
|
6.2
|
4.3
|
Ionawr 1997
|
7.4
|
4.8
|
Chwefror 1997
|
7.9
|
7.2
|
Mawrth 1997
|
8.7
|
8.7
|
Ebrill 1997
|
8.1
|
6.3
|
Mai 1997
|
10.0
|
8.0
|
Mehefin 1997
|
10.9
|
7.2
|
Gorffennaf 1997
|
12.5
|
9.9
|
Awst 1997
|
11.6
|
11.2
|
Medi 1997
|
12.8
|
11.3
|
Hydref 1997
|
14.6
|
13.6
|
Tachwedd 1997
|
12.2
|
10.5
|
Rhagfyr 1997
|
12.3
|
11.2
|
Ionawr 1998
|
13.2
|
12.4
|
Chwefror 1998
|
11.8
|
12.4
|
Mawrth 1998
|
11.9
|
10.0
|
Ebrill 1998
|
13.6
|
11.8
|
Mai 1998
|
12.9
|
12.7
|
Mehefin 1998
|
11.6
|
12.6
|
Gorffennaf 1998
|
10.6
|
10.4
|
Awst 1998
|
10.0
|
9.8
|
Medi 1998
|
10.3
|
10.4
|
Hydref 1998
|
8.3
|
9.0
|
Tachwedd 1998
|
8.6
|
9.7
|
Rhagfyr 1998
|
7.7
|
9.4
|
Ionawr 1999
|
7.6
|
7.9
|
Chwefror 1999
|
7.9
|
7.2
|
Mawrth 1999
|
7.4
|
9.4
|
Ebrill 1999
|
7.2
|
8.1
|
Mai 1999
|
6.6
|
6.8
|
Mehefin 1999
|
8.2
|
8.1
|
Gorffennaf 1999
|
8.7
|
9.6
|
Awst 1999
|
9.9
|
9.2
|
Medi 1999
|
11.5
|
12.3
|
Hydref 1999
|
12.3
|
13.4
|
Tachwedd 1999
|
15.4
|
15.7
|
Rhagfyr 1999
|
17.6
|
18.9
|
Ionawr 2000
|
17.0
|
17.7
|
Chwefror 2000
|
16.6
|
16.9
|
Mawrth 2000
|
19.4
|
18.6
|
Ebrill 2000
|
21.3
|
23.6
|
Mai 2000
|
22.7
|
24.4
|
Mehefin 2000
|
20.8
|
22.6
|
Gorffennaf 2000
|
21.5
|
22.0
|
Awst 2000
|
21.6
|
25.1
|
Medi 2000
|
19.6
|
21.2
|
Hydref 2000
|
17.5
|
17.1
|
Tachwedd 2000
|
15.7
|
16.4
|
Rhagfyr 2000
|
14.8
|
15.1
|
Ionawr 2001
|
14.8
|
16.7
|
Chwefror 2001
|
15.1
|
15.8
|
Mawrth 2001
|
14.1
|
15.7
|
Ebrill 2001
|
11.8
|
11.1
|
Mai 2001
|
11.6
|
12.0
|
Mehefin 2001
|
12.4
|
13.9
|
Gorffennaf 2001
|
12.1
|
13.6
|
Awst 2001
|
13.7
|
14.0
|
Medi 2001
|
13.6
|
14.5
|
Hydref 2001
|
15.6
|
16.7
|
Tachwedd 2001
|
16.3
|
18.4
|
Rhagfyr 2001
|
16.1
|
18.5
|
Ionawr 2002
|
16.3
|
16.5
|
Chwefror 2002
|
17.3
|
18.8
|
Mawrth 2002
|
18.2
|
20.1
|
Ebrill 2002
|
20.4
|
24.2
|
Mai 2002
|
21.0
|
23.3
|
Mehefin 2002
|
21.5
|
24.0
|
Gorffennaf 2002
|
23.1
|
25.7
|
Awst 2002
|
23.0
|
25.1
|
Medi 2002
|
23.6
|
25.0
|
Hydref 2002
|
25.5
|
28.6
|
Tachwedd 2002
|
27.2
|
29.5
|
Rhagfyr 2002
|
27.0
|
29.0
|
Ionawr 2003
|
28.9
|
32.9
|
Chwefror 2003
|
27.7
|
30.8
|
Mawrth 2003
|
26.0
|
28.5
|
Ebrill 2003
|
24.1
|
25.8
|
Mai 2003
|
21.6
|
22.8
|
Mehefin 2003
|
19.5
|
21.4
|
Gorffennaf 2003
|
18.7
|
20.1
|
Awst 2003
|
16.0
|
17.0
|
Medi 2003
|
14.8
|
16.0
|
Hydref 2003
|
13.4
|
14.0
|
Tachwedd 2003
|
11.0
|
10.3
|
Rhagfyr 2003
|
11.2
|
11.3
|
Ionawr 2004
|
10.2
|
10.3
|
Chwefror 2004
|
10.6
|
10.7
|
Mawrth 2004
|
10.7
|
11.3
|
Ebrill 2004
|
10.8
|
10.6
|
Mai 2004
|
11.2
|
13.0
|
Mehefin 2004
|
13.8
|
13.7
|
Gorffennaf 2004
|
12.2
|
12.4
|
Awst 2004
|
13.2
|
13.9
|
Medi 2004
|
13.9
|
15.4
|
Hydref 2004
|
13.1
|
15.0
|
Tachwedd 2004
|
12.7
|
15.3
|
Rhagfyr 2004
|
10.9
|
11.4
|
Ionawr 2005
|
9.8
|
10.0
|
Chwefror 2005
|
8.3
|
8.8
|
Mawrth 2005
|
7.5
|
7.5
|
Ebrill 2005
|
5.6
|
5.8
|
Mai 2005
|
6.4
|
5.8
|
Mehefin 2005
|
4.7
|
3.8
|
Gorffennaf 2005
|
4.1
|
4.5
|
Awst 2005
|
2.5
|
2.4
|
Medi 2005
|
2.3
|
1.8
|
Hydref 2005
|
1.5
|
0.9
|
Tachwedd 2005
|
1.3
|
0.1
|
Rhagfyr 2005
|
2.6
|
3.2
|
Ionawr 2006
|
2.1
|
1.8
|
Chwefror 2006
|
3.3
|
4.0
|
Mawrth 2006
|
4.0
|
3.4
|
Ebrill 2006
|
5.2
|
4.9
|
Mai 2006
|
4.5
|
4.6
|
Mehefin 2006
|
4.1
|
3.7
|
Gorffennaf 2006
|
5.4
|
4.8
|
Awst 2006
|
6.6
|
5.5
|
Medi 2006
|
6.4
|
5.3
|
Hydref 2006
|
7.7
|
6.8
|
Tachwedd 2006
|
8.2
|
6.4
|
Rhagfyr 2006
|
8.6
|
6.2
|
Ionawr 2007
|
8.9
|
8.2
|
Chwefror 2007
|
9.0
|
7.9
|
Mawrth 2007
|
9.1
|
7.8
|
Ebrill 2007
|
8.7
|
7.6
|
Mai 2007
|
8.8
|
8.8
|
Mehefin 2007
|
10.6
|
10.0
|
Gorffennaf 2007
|
9.4
|
8.8
|
Awst 2007
|
9.2
|
8.3
|
Medi 2007
|
9.6
|
9.5
|
Hydref 2007
|
8.8
|
8.3
|
Tachwedd 2007
|
8.8
|
9.4
|
Rhagfyr 2007
|
7.4
|
7.6
|
Ionawr 2008
|
6.5
|
7.0
|
Chwefror 2008
|
5.3
|
3.9
|
Mawrth 2008
|
3.2
|
2.8
|
Ebrill 2008
|
1.3
|
0.8
|
Mai 2008
|
1.3
|
-0.8
|
Mehefin 2008
|
-1.9
|
-3.3
|
Gorffennaf 2008
|
-3.2
|
-3.5
|
Awst 2008
|
-7.2
|
-6.9
|
Medi 2008
|
-9.9
|
-11.4
|
Hydref 2008
|
-12.1
|
-12.8
|
Tachwedd 2008
|
-14.8
|
-15.9
|
Rhagfyr 2008
|
-15.6
|
-17.1
|
Ionawr 2009
|
-15.5
|
-16.1
|
Chwefror 2009
|
-16.6
|
-16.6
|
Mawrth 2009
|
-17.3
|
-17.4
|
Ebrill 2009
|
-15.4
|
-15.7
|
Mai 2009
|
-14.8
|
-15.0
|
Mehefin 2009
|
-13.5
|
-14.6
|
Gorffennaf 2009
|
-10.9
|
-12.7
|
Awst 2009
|
-6.5
|
-8.8
|
Medi 2009
|
-3.0
|
-4.3
|
Hydref 2009
|
-0.4
|
-3.4
|
Tachwedd 2009
|
3.4
|
0.9
|
Rhagfyr 2009
|
4.8
|
2.2
|
Ionawr 2010
|
7.0
|
0.3
|
Chwefror 2010
|
9.6
|
3.2
|
Mawrth 2010
|
11.8
|
7.2
|
Ebrill 2010
|
11.8
|
7.3
|
Mai 2010
|
10.4
|
5.9
|
Mehefin 2010
|
10.2
|
6.7
|
Gorffennaf 2010
|
9.2
|
4.9
|
Awst 2010
|
7.5
|
3.1
|
Medi 2010
|
6.8
|
3.5
|
Hydref 2010
|
4.9
|
2.3
|
Tachwedd 2010
|
3.6
|
1.5
|
Rhagfyr 2010
|
2.7
|
0.3
|
Ionawr 2011
|
0.8
|
1.1
|
Chwefror 2011
|
-0.4
|
0.2
|
Mawrth 2011
|
0.2
|
-1.1
|
Ebrill 2011
|
-0.9
|
-1.7
|
Mai 2011
|
-1.2
|
-0.5
|
Mehefin 2011
|
-1.3
|
-1.4
|
Gorffennaf 2011
|
-1.6
|
0.1
|
Awst 2011
|
-0.8
|
-1.0
|
Medi 2011
|
-2.2
|
-3.0
|
Hydref 2011
|
-0.6
|
-1.3
|
Tachwedd 2011
|
0.2
|
0.4
|
Rhagfyr 2011
|
0.2
|
-0.2
|
Ionawr 2012
|
1.3
|
0.3
|
Chwefror 2012
|
1.6
|
-0.1
|
Mawrth 2012
|
0.3
|
0.6
|
Ebrill 2012
|
1.8
|
2.0
|
Mai 2012
|
2.1
|
-0.0
|
Mehefin 2012
|
2.3
|
0.5
|
Gorffennaf 2012
|
2.3
|
0.8
|
Awst 2012
|
1.9
|
1.8
|
Medi 2012
|
2.2
|
2.1
|
Hydref 2012
|
2.6
|
2.4
|
Tachwedd 2012
|
1.8
|
0.4
|
Rhagfyr 2012
|
1.7
|
0.4
|
Ionawr 2013
|
1.2
|
0.8
|
Chwefror 2013
|
1.1
|
1.0
|
Mawrth 2013
|
3.8
|
2.2
|
Ebrill 2013
|
2.0
|
0.5
|
Mai 2013
|
1.2
|
0.8
|
Mehefin 2013
|
2.4
|
1.8
|
Gorffennaf 2013
|
2.6
|
2.2
|
Awst 2013
|
3.0
|
2.4
|
Medi 2013
|
3.6
|
2.4
|
Hydref 2013
|
4.1
|
3.5
|
Tachwedd 2013
|
3.9
|
3.2
|
Rhagfyr 2013
|
6.8
|
8.2
|
Ionawr 2014
|
6.0
|
7.0
|
Chwefror 2014
|
7.8
|
7.8
|
Mawrth 2014
|
6.2
|
6.5
|
Ebrill 2014
|
8.1
|
8.2
|
Mai 2014
|
10.3
|
10.2
|
Mehefin 2014
|
10.0
|
10.7
|
Gorffennaf 2014
|
10.2
|
10.1
|
Awst 2014
|
10.9
|
11.3
|
Medi 2014
|
12.0
|
13.3
|
Hydref 2014
|
11.6
|
12.7
|
Tachwedd 2014
|
11.7
|
12.6
|
Rhagfyr 2014
|
9.6
|
9.1
|
Ionawr 2015
|
10.9
|
11.4
|
Chwefror 2015
|
10.6
|
11.8
|
Mawrth 2015
|
10.2
|
10.5
|
Ebrill 2015
|
9.1
|
9.7
|
Mai 2015
|
8.7
|
9.4
|
Mehefin 2015
|
8.3
|
8.4
|
Gorffennaf 2015
|
9.0
|
9.7
|
Awst 2015
|
9.1
|
9.9
|
Medi 2015
|
9.3
|
9.4
|
Hydref 2015
|
9.3
|
8.8
|
Tachwedd 2015
|
11.2
|
11.2
|
Rhagfyr 2015
|
11.3
|
11.3
|
Ionawr 2016
|
11.8
|
11.9
|
Chwefror 2016
|
11.4
|
11.1
|
Mawrth 2016
|
13.2
|
13.7
|
Ebrill 2016
|
12.0
|
12.6
|
Mai 2016
|
12.5
|
14.6
|
Mehefin 2016
|
13.2
|
15.0
|
Gorffennaf 2016
|
11.9
|
13.2
|
Awst 2016
|
10.9
|
12.6
|
Medi 2016
|
10.4
|
11.7
|
Hydref 2016
|
9.7
|
11.6
|
Tachwedd 2016
|
8.6
|
10.3
|
Rhagfyr 2016
|
9.1
|
10.9
|
Ionawr 2017
|
7.8
|
8.8
|
Chwefror 2017
|
8.6
|
11.6
|
Mawrth 2017
|
6.1
|
7.6
|
Ebrill 2017
|
7.6
|
9.2
|
Mai 2017
|
6.7
|
7.5
|
Mehefin 2017
|
6.0
|
7.3
|
Gorffennaf 2017
|
6.3
|
7.6
|
Awst 2017
|
6.0
|
6.7
|
Medi 2017
|
5.6
|
6.0
|
Hydref 2017
|
5.8
|
5.1
|
Tachwedd 2017
|
5.0
|
4.9
|
Rhagfyr 2017
|
4.7
|
4.2
|
Ionawr 2018
|
5.0
|
4.9
|
Chwefror 2018
|
4.0
|
1.6
|
Mawrth 2018
|
4.0
|
2.1
|
Ebrill 2018
|
2.9
|
0.6
|
Mai 2018
|
2.2
|
-1.7
|
Mehefin 2018
|
2.2
|
-0.5
|
Gorffennaf 2018
|
2.2
|
-1.1
|
Awst 2018
|
2.3
|
-0.5
|
Medi 2018
|
1.5
|
-1.1
|
Hydref 2018
|
1.6
|
0.2
|
Tachwedd 2018
|
2.2
|
-0.9
|
Rhagfyr 2018
|
0.6
|
-0.9
|
Ionawr 2019
|
-0.1
|
-3.0
|
Chwefror 2019
|
0.5
|
-1.4
|
Mawrth 2019
|
0.1
|
-1.6
|
Ebrill 2019
|
0.1
|
-1.4
|
Mai 2019
|
0.2
|
-1.2
|
Mehefin 2019
|
-0.4
|
-2.0
|
Gorffennaf 2019
|
-0.9
|
-1.5
|
Awst 2019
|
-1.2
|
-3.1
|
Medi 2019
|
-0.3
|
-0.6
|
Hydref 2019
|
-0.7
|
-2.4
|
Tachwedd 2019
|
-1.6
|
-3.1
|
Rhagfyr 2019
|
-0.1
|
-2.3
|
Ionawr 2020
|
0.1
|
-1.0
|
Dyddiad
|
Pob math o eiddo
|
Fflatiau a fflatiau deulawr
|
Ebrill 1992
|
0.0
|
|
Mai 1992
|
0.0
|
|
Mehefin 1992
|
0.0
|
|
Gorffennaf 1992
|
1.3
|
|
Awst 1992
|
1.3
|
|
Medi 1992
|
1.3
|
|
Hydref 1992
|
-2.6
|
|
Tachwedd 1992
|
-2.6
|
|
Rhagfyr 1992
|
-2.6
|
|
Ionawr 1993
|
-2.6
|
|
Chwefror 1993
|
-2.6
|
|
Mawrth 1993
|
-2.6
|
|
Ebrill 1993
|
1.3
|
|
Mai 1993
|
1.3
|
|
Mehefin 1993
|
1.3
|
|
Gorffennaf 1993
|
2.8
|
|
Awst 1993
|
2.8
|
|
Medi 1993
|
2.8
|
|
Hydref 1993
|
-3.1
|
|
Tachwedd 1993
|
-3.1
|
|
Rhagfyr 1993
|
-3.1
|
|
Ionawr 1994
|
1.2
|
|
Chwefror 1994
|
1.2
|
|
Mawrth 1994
|
1.2
|
|
Ebrill 1994
|
0.6
|
|
Mai 1994
|
0.6
|
|
Mehefin 1994
|
0.6
|
|
Gorffennaf 1994
|
0.9
|
|
Awst 1994
|
0.9
|
|
Medi 1994
|
0.9
|
|
Hydref 1994
|
0.4
|
|
Tachwedd 1994
|
0.4
|
|
Rhagfyr 1994
|
0.4
|
|
Ionawr 1995
|
|
|
Chwefror 1995
|
-0.2
|
0.5
|
Mawrth 1995
|
-0.8
|
-1.2
|
Ebrill 1995
|
0.7
|
2.0
|
Mai 1995
|
-0.2
|
-1.4
|
Mehefin 1995
|
-0.3
|
1.0
|
Gorffennaf 1995
|
1.7
|
-1.2
|
Awst 1995
|
-0.9
|
-1.4
|
Medi 1995
|
-0.8
|
0.2
|
Hydref 1995
|
-1.8
|
-1.6
|
Tachwedd 1995
|
1.2
|
1.7
|
Rhagfyr 1995
|
-0.6
|
-0.9
|
Ionawr 1996
|
-0.9
|
-0.9
|
Chwefror 1996
|
0.5
|
-0.2
|
Mawrth 1996
|
-0.5
|
-0.9
|
Ebrill 1996
|
1.4
|
2.4
|
Mai 1996
|
0.6
|
0.4
|
Mehefin 1996
|
0.8
|
1.8
|
Gorffennaf 1996
|
0.8
|
-1.2
|
Awst 1996
|
1.5
|
0.6
|
Medi 1996
|
-0.6
|
0.1
|
Hydref 1996
|
0.1
|
-0.4
|
Tachwedd 1996
|
1.3
|
2.3
|
Rhagfyr 1996
|
0.9
|
0.4
|
Ionawr 1997
|
0.2
|
-0.5
|
Chwefror 1997
|
1.0
|
2.1
|
Mawrth 1997
|
0.3
|
0.5
|
Ebrill 1997
|
0.8
|
0.2
|
Mai 1997
|
2.3
|
2.0
|
Mehefin 1997
|
1.7
|
1.0
|
Gorffennaf 1997
|
2.2
|
1.3
|
Awst 1997
|
0.8
|
1.7
|
Medi 1997
|
0.5
|
0.2
|
Hydref 1997
|
1.6
|
1.7
|
Tachwedd 1997
|
-0.8
|
-0.4
|
Rhagfyr 1997
|
1.0
|
1.0
|
Ionawr 1998
|
1.0
|
0.6
|
Chwefror 1998
|
-0.2
|
2.1
|
Mawrth 1998
|
0.4
|
-1.7
|
Ebrill 1998
|
2.4
|
1.8
|
Mai 1998
|
1.6
|
2.8
|
Mehefin 1998
|
0.5
|
1.0
|
Gorffennaf 1998
|
1.3
|
-0.7
|
Awst 1998
|
0.2
|
1.2
|
Medi 1998
|
0.8
|
0.7
|
Hydref 1998
|
-0.2
|
0.3
|
Tachwedd 1998
|
-0.5
|
0.3
|
Rhagfyr 1998
|
0.1
|
0.6
|
Ionawr 1999
|
1.0
|
-0.7
|
Chwefror 1999
|
0.1
|
1.4
|
Mawrth 1999
|
-0.1
|
0.3
|
Ebrill 1999
|
2.2
|
0.6
|
Mai 1999
|
1.0
|
1.5
|
Mehefin 1999
|
2.0
|
2.3
|
Gorffennaf 1999
|
1.8
|
0.6
|
Awst 1999
|
1.3
|
0.9
|
Medi 1999
|
2.2
|
3.6
|
Hydref 1999
|
0.6
|
1.3
|
Tachwedd 1999
|
2.2
|
2.2
|
Rhagfyr 1999
|
2.0
|
3.5
|
Ionawr 2000
|
0.4
|
-1.7
|
Chwefror 2000
|
-0.2
|
0.8
|
Mawrth 2000
|
2.3
|
1.7
|
Ebrill 2000
|
3.8
|
4.8
|
Mai 2000
|
2.2
|
2.2
|
Mehefin 2000
|
0.5
|
0.8
|
Gorffennaf 2000
|
2.4
|
0.1
|
Awst 2000
|
1.4
|
3.5
|
Medi 2000
|
0.5
|
0.3
|
Hydref 2000
|
-1.2
|
-2.1
|
Tachwedd 2000
|
0.7
|
1.6
|
Rhagfyr 2000
|
1.2
|
2.3
|
Ionawr 2001
|
0.4
|
-0.3
|
Chwefror 2001
|
0.0
|
0.0
|
Mawrth 2001
|
1.4
|
1.6
|
Ebrill 2001
|
1.8
|
0.6
|
Mai 2001
|
2.0
|
3.0
|
Mehefin 2001
|
1.2
|
2.6
|
Gorffennaf 2001
|
2.1
|
-0.2
|
Awst 2001
|
2.8
|
3.9
|
Medi 2001
|
0.4
|
0.7
|
Hydref 2001
|
0.6
|
-0.2
|
Tachwedd 2001
|
1.2
|
3.1
|
Rhagfyr 2001
|
1.0
|
2.5
|
Ionawr 2002
|
0.6
|
-2.0
|
Chwefror 2002
|
0.9
|
2.0
|
Mawrth 2002
|
2.1
|
2.7
|
Ebrill 2002
|
3.7
|
4.1
|
Mai 2002
|
2.5
|
2.3
|
Mehefin 2002
|
1.6
|
3.1
|
Gorffennaf 2002
|
3.5
|
1.2
|
Awst 2002
|
2.7
|
3.4
|
Medi 2002
|
0.9
|
0.7
|
Hydref 2002
|
2.2
|
2.6
|
Tachwedd 2002
|
2.6
|
3.8
|
Rhagfyr 2002
|
0.9
|
2.1
|
Ionawr 2003
|
2.1
|
0.9
|
Chwefror 2003
|
-0.0
|
0.4
|
Mawrth 2003
|
0.8
|
0.9
|
Ebrill 2003
|
2.1
|
1.9
|
Mai 2003
|
0.5
|
-0.2
|
Mehefin 2003
|
-0.2
|
1.9
|
Gorffennaf 2003
|
2.8
|
0.1
|
Awst 2003
|
0.4
|
0.8
|
Medi 2003
|
-0.2
|
-0.2
|
Hydref 2003
|
0.9
|
0.9
|
Tachwedd 2003
|
0.5
|
0.3
|
Rhagfyr 2003
|
1.0
|
3.1
|
Ionawr 2004
|
1.3
|
0.0
|
Chwefror 2004
|
0.3
|
0.8
|
Mawrth 2004
|
0.9
|
1.5
|
Ebrill 2004
|
2.2
|
1.2
|
Mai 2004
|
0.8
|
2.0
|
Mehefin 2004
|
2.1
|
2.6
|
Gorffennaf 2004
|
1.3
|
-1.1
|
Awst 2004
|
1.4
|
2.2
|
Medi 2004
|
0.4
|
1.1
|
Hydref 2004
|
0.2
|
0.6
|
Tachwedd 2004
|
0.2
|
0.6
|
Rhagfyr 2004
|
-0.6
|
-0.4
|
Ionawr 2005
|
0.2
|
-1.2
|
Chwefror 2005
|
-1.0
|
-0.4
|
Mawrth 2005
|
0.1
|
0.3
|
Ebrill 2005
|
0.3
|
-0.4
|
Mai 2005
|
1.6
|
2.0
|
Mehefin 2005
|
0.6
|
0.7
|
Gorffennaf 2005
|
0.7
|
-0.6
|
Awst 2005
|
-0.2
|
0.2
|
Medi 2005
|
0.2
|
0.5
|
Hydref 2005
|
-0.6
|
-0.3
|
Tachwedd 2005
|
-0.1
|
-0.2
|
Rhagfyr 2005
|
0.7
|
2.6
|
Ionawr 2006
|
-0.3
|
-2.6
|
Chwefror 2006
|
0.1
|
1.8
|
Mawrth 2006
|
0.8
|
-0.2
|
Ebrill 2006
|
1.6
|
1.0
|
Mai 2006
|
0.9
|
1.6
|
Mehefin 2006
|
0.2
|
-0.1
|
Gorffennaf 2006
|
2.0
|
0.5
|
Awst 2006
|
0.9
|
0.8
|
Medi 2006
|
0.0
|
0.4
|
Hydref 2006
|
0.7
|
1.1
|
Tachwedd 2006
|
0.4
|
-0.6
|
Rhagfyr 2006
|
1.1
|
2.4
|
Ionawr 2007
|
0.1
|
-0.8
|
Chwefror 2007
|
0.2
|
1.6
|
Mawrth 2007
|
0.8
|
-0.4
|
Ebrill 2007
|
1.2
|
0.9
|
Mai 2007
|
1.0
|
2.8
|
Mehefin 2007
|
1.8
|
0.9
|
Gorffennaf 2007
|
0.9
|
-0.5
|
Awst 2007
|
0.7
|
0.3
|
Medi 2007
|
0.4
|
1.4
|
Hydref 2007
|
-0.1
|
0.0
|
Tachwedd 2007
|
0.3
|
0.4
|
Rhagfyr 2007
|
-0.1
|
0.7
|
Ionawr 2008
|
-0.8
|
-1.3
|
Chwefror 2008
|
-0.9
|
-1.4
|
Mawrth 2008
|
-1.2
|
-1.4
|
Ebrill 2008
|
-0.6
|
-1.0
|
Mai 2008
|
0.9
|
1.1
|
Mehefin 2008
|
-1.5
|
-1.6
|
Gorffennaf 2008
|
-0.3
|
-0.7
|
Awst 2008
|
-3.6
|
-3.2
|
Medi 2008
|
-2.5
|
-3.4
|
Hydref 2008
|
-2.5
|
-1.5
|
Tachwedd 2008
|
-2.8
|
-3.2
|
Rhagfyr 2008
|
-0.9
|
-0.7
|
Ionawr 2009
|
-0.7
|
-0.1
|
Chwefror 2009
|
-2.2
|
-2.0
|
Mawrth 2009
|
-2.0
|
-2.4
|
Ebrill 2009
|
1.6
|
1.1
|
Mai 2009
|
1.8
|
1.9
|
Mehefin 2009
|
-0.1
|
-1.1
|
Gorffennaf 2009
|
2.7
|
1.5
|
Awst 2009
|
1.2
|
1.1
|
Medi 2009
|
1.2
|
1.3
|
Hydref 2009
|
0.1
|
-0.6
|
Tachwedd 2009
|
0.9
|
1.0
|
Rhagfyr 2009
|
0.5
|
0.5
|
Ionawr 2010
|
1.4
|
-1.9
|
Chwefror 2010
|
0.1
|
0.8
|
Mawrth 2010
|
0.1
|
1.4
|
Ebrill 2010
|
1.6
|
1.1
|
Mai 2010
|
0.4
|
0.6
|
Mehefin 2010
|
-0.2
|
-0.4
|
Gorffennaf 2010
|
1.7
|
-0.3
|
Awst 2010
|
-0.4
|
-0.6
|
Medi 2010
|
0.5
|
1.7
|
Hydref 2010
|
-1.6
|
-1.7
|
Tachwedd 2010
|
-0.4
|
0.2
|
Rhagfyr 2010
|
-0.4
|
-0.6
|
Ionawr 2011
|
-0.5
|
-1.1
|
Chwefror 2011
|
-1.1
|
-0.1
|
Mawrth 2011
|
0.7
|
0.2
|
Ebrill 2011
|
0.5
|
0.4
|
Mai 2011
|
0.2
|
1.8
|
Mehefin 2011
|
-0.3
|
-1.2
|
Gorffennaf 2011
|
1.4
|
1.2
|
Awst 2011
|
0.4
|
-1.6
|
Medi 2011
|
-0.9
|
-0.4
|
Hydref 2011
|
-0.0
|
0.1
|
Tachwedd 2011
|
0.4
|
1.8
|
Rhagfyr 2011
|
-0.4
|
-1.2
|
Ionawr 2012
|
0.6
|
-0.6
|
Chwefror 2012
|
-0.8
|
-0.5
|
Mawrth 2012
|
-0.6
|
0.8
|
Ebrill 2012
|
2.0
|
1.9
|
Mai 2012
|
0.4
|
-0.2
|
Mehefin 2012
|
-0.1
|
-0.7
|
Gorffennaf 2012
|
1.4
|
1.5
|
Awst 2012
|
0.0
|
-0.6
|
Medi 2012
|
-0.6
|
-0.1
|
Hydref 2012
|
0.4
|
0.3
|
Tachwedd 2012
|
-0.4
|
-0.2
|
Rhagfyr 2012
|
-0.5
|
-1.2
|
Ionawr 2013
|
0.1
|
-0.3
|
Chwefror 2013
|
-0.9
|
-0.2
|
Mawrth 2013
|
2.0
|
2.0
|
Ebrill 2013
|
0.2
|
0.2
|
Mai 2013
|
-0.4
|
0.1
|
Mehefin 2013
|
1.1
|
0.3
|
Gorffennaf 2013
|
1.6
|
1.8
|
Awst 2013
|
0.4
|
-0.3
|
Medi 2013
|
-0.1
|
-0.1
|
Hydref 2013
|
0.8
|
1.4
|
Tachwedd 2013
|
-0.5
|
-0.4
|
Rhagfyr 2013
|
2.3
|
3.6
|
Ionawr 2014
|
-0.7
|
-1.4
|
Chwefror 2014
|
0.8
|
0.6
|
Mawrth 2014
|
0.5
|
0.8
|
Ebrill 2014
|
2.0
|
1.8
|
Mai 2014
|
1.7
|
2.0
|
Mehefin 2014
|
0.8
|
0.7
|
Gorffennaf 2014
|
1.7
|
1.3
|
Awst 2014
|
1.1
|
0.8
|
Medi 2014
|
0.9
|
1.7
|
Hydref 2014
|
0.5
|
0.8
|
Tachwedd 2014
|
-0.4
|
-0.5
|
Rhagfyr 2014
|
0.4
|
0.5
|
Ionawr 2015
|
0.5
|
0.6
|
Chwefror 2015
|
0.5
|
0.9
|
Mawrth 2015
|
0.1
|
-0.4
|
Ebrill 2015
|
1.0
|
1.0
|
Mai 2015
|
1.4
|
1.7
|
Mehefin 2015
|
0.5
|
-0.2
|
Gorffennaf 2015
|
2.4
|
2.6
|
Awst 2015
|
1.1
|
0.9
|
Medi 2015
|
1.1
|
1.2
|
Hydref 2015
|
0.5
|
0.2
|
Tachwedd 2015
|
1.3
|
1.6
|
Rhagfyr 2015
|
0.4
|
0.6
|
Ionawr 2016
|
0.9
|
1.1
|
Chwefror 2016
|
0.1
|
0.2
|
Mawrth 2016
|
1.7
|
2.0
|
Ebrill 2016
|
0.0
|
0.0
|
Mai 2016
|
1.8
|
3.6
|
Mehefin 2016
|
1.1
|
0.0
|
Gorffennaf 2016
|
1.2
|
1.0
|
Awst 2016
|
0.2
|
0.4
|
Medi 2016
|
0.7
|
0.4
|
Hydref 2016
|
-0.2
|
0.2
|
Tachwedd 2016
|
0.3
|
0.5
|
Rhagfyr 2016
|
0.9
|
1.1
|
Ionawr 2017
|
-0.3
|
-0.8
|
Chwefror 2017
|
0.8
|
2.8
|
Mawrth 2017
|
-0.7
|
-1.7
|
Ebrill 2017
|
1.5
|
1.5
|
Mai 2017
|
0.9
|
2.0
|
Mehefin 2017
|
0.5
|
-0.2
|
Gorffennaf 2017
|
1.5
|
1.3
|
Awst 2017
|
-0.1
|
-0.5
|
Medi 2017
|
0.3
|
-0.3
|
Hydref 2017
|
0.1
|
-0.7
|
Tachwedd 2017
|
-0.5
|
0.4
|
Rhagfyr 2017
|
0.6
|
0.4
|
Ionawr 2018
|
-0.0
|
-0.1
|
Chwefror 2018
|
-0.2
|
-0.5
|
Mawrth 2018
|
-0.6
|
-1.2
|
Ebrill 2018
|
0.4
|
-0.1
|
Mai 2018
|
0.2
|
-0.3
|
Mehefin 2018
|
0.4
|
1.1
|
Gorffennaf 2018
|
1.5
|
0.8
|
Awst 2018
|
0.0
|
0.0
|
Medi 2018
|
-0.5
|
-0.8
|
Hydref 2018
|
0.2
|
0.6
|
Tachwedd 2018
|
0.1
|
-0.8
|
Rhagfyr 2018
|
-0.9
|
0.4
|
Ionawr 2019
|
-0.8
|
-2.3
|
Chwefror 2019
|
0.4
|
1.2
|
Mawrth 2019
|
-1.0
|
-1.4
|
Ebrill 2019
|
0.4
|
0.1
|
Mai 2019
|
0.2
|
-0.0
|
Mehefin 2019
|
-0.1
|
0.2
|
Gorffennaf 2019
|
1.0
|
1.4
|
Awst 2019
|
-0.3
|
-1.6
|
Medi 2019
|
0.4
|
1.7
|
Hydref 2019
|
-0.3
|
-1.2
|
Tachwedd 2019
|
-0.7
|
-1.5
|
Rhagfyr 2019
|
0.6
|
1.2
|
Ionawr 2020
|
-0.6
|
-1.0
|
Dyddiad
|
Pob math o eiddo
|
Fflatiau a fflatiau deulawr
|
Ebrill 1992
|
25.0
|
|
Mai 1992
|
25.0
|
|
Mehefin 1992
|
25.0
|
|
Gorffennaf 1992
|
25.3
|
|
Awst 1992
|
25.3
|
|
Medi 1992
|
25.3
|
|
Hydref 1992
|
24.7
|
|
Tachwedd 1992
|
24.7
|
|
Rhagfyr 1992
|
24.7
|
|
Ionawr 1993
|
24.0
|
|
Chwefror 1993
|
24.0
|
|
Mawrth 1993
|
24.0
|
|
Ebrill 1993
|
24.3
|
|
Mai 1993
|
24.3
|
|
Mehefin 1993
|
24.3
|
|
Gorffennaf 1993
|
25.0
|
|
Awst 1993
|
25.0
|
|
Medi 1993
|
25.0
|
|
Hydref 1993
|
24.2
|
|
Tachwedd 1993
|
24.2
|
|
Rhagfyr 1993
|
24.2
|
|
Ionawr 1994
|
24.5
|
|
Chwefror 1994
|
24.5
|
|
Mawrth 1994
|
24.5
|
|
Ebrill 1994
|
24.7
|
|
Mai 1994
|
24.7
|
|
Mehefin 1994
|
24.7
|
|
Gorffennaf 1994
|
24.9
|
|
Awst 1994
|
24.9
|
|
Medi 1994
|
24.9
|
|
Hydref 1994
|
25.0
|
|
Tachwedd 1994
|
25.0
|
|
Rhagfyr 1994
|
25.0
|
|
Ionawr 1995
|
24.8
|
26.1
|
Chwefror 1995
|
24.8
|
26.2
|
Mawrth 1995
|
24.6
|
25.9
|
Ebrill 1995
|
24.8
|
26.4
|
Mai 1995
|
24.7
|
26.1
|
Mehefin 1995
|
24.7
|
26.4
|
Gorffennaf 1995
|
25.1
|
26.0
|
Awst 1995
|
24.8
|
25.7
|
Medi 1995
|
24.6
|
25.7
|
Hydref 1995
|
24.2
|
25.3
|
Tachwedd 1995
|
24.5
|
25.7
|
Rhagfyr 1995
|
24.3
|
25.5
|
Ionawr 1996
|
24.1
|
25.2
|
Chwefror 1996
|
24.2
|
25.2
|
Mawrth 1996
|
24.1
|
25.0
|
Ebrill 1996
|
24.4
|
25.6
|
Mai 1996
|
24.6
|
25.6
|
Mehefin 1996
|
24.8
|
26.1
|
Gorffennaf 1996
|
25.0
|
25.8
|
Awst 1996
|
25.4
|
26.0
|
Medi 1996
|
25.2
|
26.0
|
Hydref 1996
|
25.3
|
25.9
|
Tachwedd 1996
|
25.6
|
26.5
|
Rhagfyr 1996
|
25.8
|
26.6
|
Ionawr 1997
|
25.9
|
26.5
|
Chwefror 1997
|
26.2
|
27.0
|
Mawrth 1997
|
26.2
|
27.1
|
Ebrill 1997
|
26.4
|
27.2
|
Mai 1997
|
27.0
|
27.7
|
Mehefin 1997
|
27.5
|
28.0
|
Gorffennaf 1997
|
28.1
|
28.4
|
Awst 1997
|
28.3
|
28.8
|
Medi 1997
|
28.5
|
28.9
|
Hydref 1997
|
29.0
|
29.4
|
Tachwedd 1997
|
28.7
|
29.3
|
Rhagfyr 1997
|
29.0
|
29.6
|
Ionawr 1998
|
29.3
|
29.7
|
Chwefror 1998
|
29.2
|
30.4
|
Mawrth 1998
|
29.4
|
29.8
|
Ebrill 1998
|
30.0
|
30.4
|
Mai 1998
|
30.5
|
31.2
|
Mehefin 1998
|
30.7
|
31.5
|
Gorffennaf 1998
|
31.1
|
31.3
|
Awst 1998
|
31.2
|
31.7
|
Medi 1998
|
31.4
|
31.9
|
Hydref 1998
|
31.4
|
32.0
|
Tachwedd 1998
|
31.2
|
32.1
|
Rhagfyr 1998
|
31.2
|
32.3
|
Ionawr 1999
|
31.5
|
32.1
|
Chwefror 1999
|
31.6
|
32.6
|
Mawrth 1999
|
31.5
|
32.7
|
Ebrill 1999
|
32.2
|
32.8
|
Mai 1999
|
32.5
|
33.4
|
Mehefin 1999
|
33.2
|
34.1
|
Gorffennaf 1999
|
33.8
|
34.3
|
Awst 1999
|
34.2
|
34.6
|
Medi 1999
|
35.0
|
35.8
|
Hydref 1999
|
35.2
|
36.3
|
Tachwedd 1999
|
36.0
|
37.1
|
Rhagfyr 1999
|
36.7
|
38.4
|
Ionawr 2000
|
36.9
|
37.8
|
Chwefror 2000
|
36.8
|
38.1
|
Mawrth 2000
|
37.6
|
38.7
|
Ebrill 2000
|
39.1
|
40.6
|
Mai 2000
|
39.9
|
41.5
|
Mehefin 2000
|
40.1
|
41.8
|
Gorffennaf 2000
|
41.1
|
41.8
|
Awst 2000
|
41.6
|
43.3
|
Medi 2000
|
41.9
|
43.4
|
Hydref 2000
|
41.4
|
42.6
|
Tachwedd 2000
|
41.7
|
43.2
|
Rhagfyr 2000
|
42.1
|
44.2
|
Ionawr 2001
|
42.3
|
44.1
|
Chwefror 2001
|
42.3
|
44.1
|
Mawrth 2001
|
42.9
|
44.8
|
Ebrill 2001
|
43.7
|
45.1
|
Mai 2001
|
44.6
|
46.4
|
Mehefin 2001
|
45.1
|
47.6
|
Gorffennaf 2001
|
46.1
|
47.5
|
Awst 2001
|
47.4
|
49.4
|
Medi 2001
|
47.6
|
49.8
|
Hydref 2001
|
47.8
|
49.6
|
Tachwedd 2001
|
48.4
|
51.2
|
Rhagfyr 2001
|
48.9
|
52.4
|
Ionawr 2002
|
49.2
|
51.4
|
Chwefror 2002
|
49.7
|
52.4
|
Mawrth 2002
|
50.7
|
53.8
|
Ebrill 2002
|
52.6
|
56.0
|
Mai 2002
|
53.9
|
57.3
|
Mehefin 2002
|
54.8
|
59.1
|
Gorffennaf 2002
|
56.7
|
59.8
|
Awst 2002
|
58.2
|
61.8
|
Medi 2002
|
58.7
|
62.2
|
Hydref 2002
|
60.1
|
63.8
|
Tachwedd 2002
|
61.6
|
66.2
|
Rhagfyr 2002
|
62.1
|
67.6
|
Ionawr 2003
|
63.5
|
68.3
|
Chwefror 2003
|
63.4
|
68.5
|
Mawrth 2003
|
63.9
|
69.2
|
Ebrill 2003
|
65.3
|
70.5
|
Mai 2003
|
65.6
|
70.3
|
Mehefin 2003
|
65.5
|
71.7
|
Gorffennaf 2003
|
67.3
|
71.7
|
Awst 2003
|
67.6
|
72.3
|
Medi 2003
|
67.5
|
72.2
|
Hydref 2003
|
68.1
|
72.8
|
Tachwedd 2003
|
68.4
|
73.0
|
Rhagfyr 2003
|
69.1
|
75.3
|
Ionawr 2004
|
70.0
|
75.3
|
Chwefror 2004
|
70.2
|
75.9
|
Mawrth 2004
|
70.8
|
77.0
|
Ebrill 2004
|
72.3
|
77.9
|
Mai 2004
|
73.0
|
79.5
|
Mehefin 2004
|
74.5
|
81.5
|
Gorffennaf 2004
|
75.5
|
80.6
|
Awst 2004
|
76.5
|
82.4
|
Medi 2004
|
76.8
|
83.3
|
Hydref 2004
|
77.0
|
83.8
|
Tachwedd 2004
|
77.1
|
84.2
|
Rhagfyr 2004
|
76.6
|
83.8
|
Ionawr 2005
|
76.8
|
82.8
|
Chwefror 2005
|
76.0
|
82.5
|
Mawrth 2005
|
76.1
|
82.8
|
Ebrill 2005
|
76.4
|
82.4
|
Mai 2005
|
77.6
|
84.1
|
Mehefin 2005
|
78.0
|
84.7
|
Gorffennaf 2005
|
78.5
|
84.2
|
Awst 2005
|
78.4
|
84.3
|
Medi 2005
|
78.6
|
84.8
|
Hydref 2005
|
78.1
|
84.5
|
Tachwedd 2005
|
78.1
|
84.3
|
Rhagfyr 2005
|
78.6
|
86.5
|
Ionawr 2006
|
78.4
|
84.3
|
Chwefror 2006
|
78.5
|
85.8
|
Mawrth 2006
|
79.1
|
85.6
|
Ebrill 2006
|
80.4
|
86.5
|
Mai 2006
|
81.1
|
87.9
|
Mehefin 2006
|
81.2
|
87.8
|
Gorffennaf 2006
|
82.8
|
88.2
|
Awst 2006
|
83.5
|
89.0
|
Medi 2006
|
83.6
|
89.3
|
Hydref 2006
|
84.1
|
90.2
|
Tachwedd 2006
|
84.4
|
89.7
|
Rhagfyr 2006
|
85.4
|
91.9
|
Ionawr 2007
|
85.4
|
91.2
|
Chwefror 2007
|
85.6
|
92.6
|
Mawrth 2007
|
86.3
|
92.3
|
Ebrill 2007
|
87.4
|
93.1
|
Mai 2007
|
88.2
|
95.6
|
Mehefin 2007
|
89.8
|
96.5
|
Gorffennaf 2007
|
90.6
|
96.0
|
Awst 2007
|
91.2
|
96.4
|
Medi 2007
|
91.6
|
97.7
|
Hydref 2007
|
91.5
|
97.8
|
Tachwedd 2007
|
91.8
|
98.1
|
Rhagfyr 2007
|
91.7
|
98.9
|
Ionawr 2008
|
91.0
|
97.6
|
Chwefror 2008
|
90.2
|
96.2
|
Mawrth 2008
|
89.1
|
94.8
|
Ebrill 2008
|
88.6
|
93.9
|
Mai 2008
|
89.4
|
94.9
|
Mehefin 2008
|
88.0
|
93.3
|
Gorffennaf 2008
|
87.8
|
92.6
|
Awst 2008
|
84.6
|
89.7
|
Medi 2008
|
82.5
|
86.6
|
Hydref 2008
|
80.5
|
85.3
|
Tachwedd 2008
|
78.2
|
82.5
|
Rhagfyr 2008
|
77.5
|
82.0
|
Ionawr 2009
|
76.9
|
81.9
|
Chwefror 2009
|
75.2
|
80.3
|
Mawrth 2009
|
73.7
|
78.3
|
Ebrill 2009
|
74.9
|
79.2
|
Mai 2009
|
76.2
|
80.6
|
Mehefin 2009
|
76.1
|
79.7
|
Gorffennaf 2009
|
78.2
|
80.9
|
Awst 2009
|
79.1
|
81.8
|
Medi 2009
|
80.0
|
82.9
|
Hydref 2009
|
80.1
|
82.4
|
Tachwedd 2009
|
80.8
|
83.3
|
Rhagfyr 2009
|
81.2
|
83.7
|
Ionawr 2010
|
82.3
|
82.2
|
Chwefror 2010
|
82.4
|
82.8
|
Mawrth 2010
|
82.4
|
84.0
|
Ebrill 2010
|
83.7
|
84.9
|
Mai 2010
|
84.1
|
85.4
|
Mehefin 2010
|
83.9
|
85.1
|
Gorffennaf 2010
|
85.4
|
84.8
|
Awst 2010
|
85.0
|
84.4
|
Medi 2010
|
85.4
|
85.8
|
Hydref 2010
|
84.1
|
84.4
|
Tachwedd 2010
|
83.8
|
84.5
|
Rhagfyr 2010
|
83.4
|
84.0
|
Ionawr 2011
|
83.0
|
83.0
|
Chwefror 2011
|
82.0
|
83.0
|
Mawrth 2011
|
82.6
|
83.1
|
Ebrill 2011
|
83.0
|
83.5
|
Mai 2011
|
83.1
|
85.0
|
Mehefin 2011
|
82.8
|
83.9
|
Gorffennaf 2011
|
84.0
|
85.0
|
Awst 2011
|
84.4
|
83.6
|
Medi 2011
|
83.6
|
83.2
|
Hydref 2011
|
83.6
|
83.3
|
Tachwedd 2011
|
83.9
|
84.8
|
Rhagfyr 2011
|
83.6
|
83.8
|
Ionawr 2012
|
84.1
|
83.3
|
Chwefror 2012
|
83.4
|
82.9
|
Mawrth 2012
|
82.8
|
83.6
|
Ebrill 2012
|
84.5
|
85.1
|
Mai 2012
|
84.8
|
85.0
|
Mehefin 2012
|
84.8
|
84.3
|
Gorffennaf 2012
|
85.9
|
85.6
|
Awst 2012
|
86.0
|
85.1
|
Medi 2012
|
85.4
|
85.0
|
Hydref 2012
|
85.7
|
85.3
|
Tachwedd 2012
|
85.4
|
85.1
|
Rhagfyr 2012
|
85.0
|
84.2
|
Ionawr 2013
|
85.1
|
83.9
|
Chwefror 2013
|
84.3
|
83.7
|
Mawrth 2013
|
86.0
|
85.4
|
Ebrill 2013
|
86.2
|
85.6
|
Mai 2013
|
85.8
|
85.7
|
Mehefin 2013
|
86.8
|
85.9
|
Gorffennaf 2013
|
88.2
|
87.4
|
Awst 2013
|
88.6
|
87.2
|
Medi 2013
|
88.5
|
87.1
|
Hydref 2013
|
89.2
|
88.2
|
Tachwedd 2013
|
88.8
|
87.9
|
Rhagfyr 2013
|
90.8
|
91.1
|
Ionawr 2014
|
90.2
|
89.8
|
Chwefror 2014
|
90.8
|
90.3
|
Mawrth 2014
|
91.3
|
91.0
|
Ebrill 2014
|
93.1
|
92.6
|
Mai 2014
|
94.7
|
94.4
|
Mehefin 2014
|
95.5
|
95.1
|
Gorffennaf 2014
|
97.2
|
96.3
|
Awst 2014
|
98.2
|
97.0
|
Medi 2014
|
99.1
|
98.7
|
Hydref 2014
|
99.6
|
99.4
|
Tachwedd 2014
|
99.2
|
99.0
|
Rhagfyr 2014
|
99.5
|
99.4
|
Ionawr 2015
|
100.0
|
100.0
|
Chwefror 2015
|
100.5
|
100.9
|
Mawrth 2015
|
100.5
|
100.5
|
Ebrill 2015
|
101.6
|
101.5
|
Mai 2015
|
103.0
|
103.3
|
Mehefin 2015
|
103.4
|
103.0
|
Gorffennaf 2015
|
105.9
|
105.7
|
Awst 2015
|
107.1
|
106.7
|
Medi 2015
|
108.3
|
108.0
|
Hydref 2015
|
108.8
|
108.2
|
Tachwedd 2015
|
110.3
|
110.0
|
Rhagfyr 2015
|
110.8
|
110.6
|
Ionawr 2016
|
111.8
|
111.9
|
Chwefror 2016
|
111.9
|
112.1
|
Mawrth 2016
|
113.8
|
114.3
|
Ebrill 2016
|
113.8
|
114.3
|
Mai 2016
|
115.8
|
118.4
|
Mehefin 2016
|
117.1
|
118.4
|
Gorffennaf 2016
|
118.6
|
119.7
|
Awst 2016
|
118.8
|
120.1
|
Medi 2016
|
119.6
|
120.6
|
Hydref 2016
|
119.4
|
120.8
|
Tachwedd 2016
|
119.8
|
121.4
|
Rhagfyr 2016
|
120.9
|
122.6
|
Ionawr 2017
|
120.5
|
121.7
|
Chwefror 2017
|
121.5
|
125.0
|
Mawrth 2017
|
120.7
|
123.0
|
Ebrill 2017
|
122.4
|
124.8
|
Mai 2017
|
123.6
|
127.3
|
Mehefin 2017
|
124.1
|
127.1
|
Gorffennaf 2017
|
126.0
|
128.8
|
Awst 2017
|
126.0
|
128.1
|
Medi 2017
|
126.3
|
127.8
|
Hydref 2017
|
126.4
|
126.9
|
Tachwedd 2017
|
125.8
|
127.4
|
Rhagfyr 2017
|
126.6
|
127.8
|
Ionawr 2018
|
126.6
|
127.7
|
Chwefror 2018
|
126.3
|
127.1
|
Mawrth 2018
|
125.5
|
125.6
|
Ebrill 2018
|
126.0
|
125.5
|
Mai 2018
|
126.3
|
125.1
|
Mehefin 2018
|
126.8
|
126.5
|
Gorffennaf 2018
|
128.8
|
127.4
|
Awst 2018
|
128.8
|
127.5
|
Medi 2018
|
128.2
|
126.4
|
Hydref 2018
|
128.4
|
127.2
|
Tachwedd 2018
|
128.5
|
126.2
|
Rhagfyr 2018
|
127.4
|
126.7
|
Ionawr 2019
|
126.4
|
123.8
|
Chwefror 2019
|
127.0
|
125.3
|
Mawrth 2019
|
125.6
|
123.5
|
Ebrill 2019
|
126.2
|
123.7
|
Mai 2019
|
126.5
|
123.6
|
Mehefin 2019
|
126.3
|
123.9
|
Gorffennaf 2019
|
127.6
|
125.6
|
Awst 2019
|
127.3
|
123.6
|
Medi 2019
|
127.8
|
125.7
|
Hydref 2019
|
127.4
|
124.2
|
Tachwedd 2019
|
126.6
|
122.3
|
Rhagfyr 2019
|
127.3
|
123.8
|
Ionawr 2020
|
126.6
|
122.6
|
Statws y prynwr
Tracio’r mynegai, pris cyfartalog a’r newid misol a blynyddol yn ôl y math o brynwr e.e. Prynwr am y Tro Cyntaf neu Gyn Berchen-Feddiannydd
Statws cyllido
Tracio’r mynegai, pris cyfartalog a’r newid misol a blynyddol a nifer y gwerthiannau yn ôl statws cyllido, e.e. Arian Parod/Morgais
Dyddiad
|
Pryniannau arian parod
|
Ebrill 1992
|
|
Mai 1992
|
|
Mehefin 1992
|
|
Gorffennaf 1992
|
|
Awst 1992
|
|
Medi 1992
|
|
Hydref 1992
|
|
Tachwedd 1992
|
|
Rhagfyr 1992
|
|
Ionawr 1993
|
|
Chwefror 1993
|
|
Mawrth 1993
|
|
Ebrill 1993
|
|
Mai 1993
|
|
Mehefin 1993
|
|
Gorffennaf 1993
|
|
Awst 1993
|
|
Medi 1993
|
|
Hydref 1993
|
|
Tachwedd 1993
|
|
Rhagfyr 1993
|
|
Ionawr 1994
|
|
Chwefror 1994
|
|
Mawrth 1994
|
|
Ebrill 1994
|
|
Mai 1994
|
|
Mehefin 1994
|
|
Gorffennaf 1994
|
|
Awst 1994
|
|
Medi 1994
|
|
Hydref 1994
|
|
Tachwedd 1994
|
|
Rhagfyr 1994
|
|
Ionawr 1995
|
|
Chwefror 1995
|
|
Mawrth 1995
|
|
Ebrill 1995
|
|
Mai 1995
|
|
Mehefin 1995
|
|
Gorffennaf 1995
|
|
Awst 1995
|
|
Medi 1995
|
|
Hydref 1995
|
|
Tachwedd 1995
|
|
Rhagfyr 1995
|
|
Ionawr 1996
|
|
Chwefror 1996
|
|
Mawrth 1996
|
|
Ebrill 1996
|
|
Mai 1996
|
|
Mehefin 1996
|
|
Gorffennaf 1996
|
|
Awst 1996
|
|
Medi 1996
|
|
Hydref 1996
|
|
Tachwedd 1996
|
|
Rhagfyr 1996
|
|
Ionawr 1997
|
|
Chwefror 1997
|
|
Mawrth 1997
|
|
Ebrill 1997
|
|
Mai 1997
|
|
Mehefin 1997
|
|
Gorffennaf 1997
|
|
Awst 1997
|
|
Medi 1997
|
|
Hydref 1997
|
|
Tachwedd 1997
|
|
Rhagfyr 1997
|
|
Ionawr 1998
|
|
Chwefror 1998
|
|
Mawrth 1998
|
|
Ebrill 1998
|
|
Mai 1998
|
|
Mehefin 1998
|
|
Gorffennaf 1998
|
|
Awst 1998
|
|
Medi 1998
|
|
Hydref 1998
|
|
Tachwedd 1998
|
|
Rhagfyr 1998
|
|
Ionawr 1999
|
|
Chwefror 1999
|
|
Mawrth 1999
|
|
Ebrill 1999
|
|
Mai 1999
|
|
Mehefin 1999
|
|
Gorffennaf 1999
|
|
Awst 1999
|
|
Medi 1999
|
|
Hydref 1999
|
|
Tachwedd 1999
|
|
Rhagfyr 1999
|
|
Ionawr 2000
|
|
Chwefror 2000
|
|
Mawrth 2000
|
|
Ebrill 2000
|
|
Mai 2000
|
|
Mehefin 2000
|
|
Gorffennaf 2000
|
|
Awst 2000
|
|
Medi 2000
|
|
Hydref 2000
|
|
Tachwedd 2000
|
|
Rhagfyr 2000
|
|
Ionawr 2001
|
|
Chwefror 2001
|
|
Mawrth 2001
|
|
Ebrill 2001
|
|
Mai 2001
|
|
Mehefin 2001
|
|
Gorffennaf 2001
|
|
Awst 2001
|
|
Medi 2001
|
|
Hydref 2001
|
|
Tachwedd 2001
|
|
Rhagfyr 2001
|
|
Ionawr 2002
|
|
Chwefror 2002
|
|
Mawrth 2002
|
|
Ebrill 2002
|
|
Mai 2002
|
|
Mehefin 2002
|
|
Gorffennaf 2002
|
|
Awst 2002
|
|
Medi 2002
|
|
Hydref 2002
|
|
Tachwedd 2002
|
|
Rhagfyr 2002
|
|
Ionawr 2003
|
|
Chwefror 2003
|
|
Mawrth 2003
|
|
Ebrill 2003
|
|
Mai 2003
|
|
Mehefin 2003
|
|
Gorffennaf 2003
|
|
Awst 2003
|
|
Medi 2003
|
|
Hydref 2003
|
|
Tachwedd 2003
|
|
Rhagfyr 2003
|
|
Ionawr 2004
|
|
Chwefror 2004
|
|
Mawrth 2004
|
|
Ebrill 2004
|
|
Mai 2004
|
|
Mehefin 2004
|
|
Gorffennaf 2004
|
|
Awst 2004
|
|
Medi 2004
|
|
Hydref 2004
|
|
Tachwedd 2004
|
|
Rhagfyr 2004
|
|
Ionawr 2005
|
|
Chwefror 2005
|
|
Mawrth 2005
|
|
Ebrill 2005
|
|
Mai 2005
|
|
Mehefin 2005
|
|
Gorffennaf 2005
|
|
Awst 2005
|
|
Medi 2005
|
|
Hydref 2005
|
|
Tachwedd 2005
|
|
Rhagfyr 2005
|
|
Ionawr 2006
|
|
Chwefror 2006
|
|
Mawrth 2006
|
|
Ebrill 2006
|
|
Mai 2006
|
|
Mehefin 2006
|
|
Gorffennaf 2006
|
|
Awst 2006
|
|
Medi 2006
|
|
Hydref 2006
|
|
Tachwedd 2006
|
|
Rhagfyr 2006
|
|
Ionawr 2007
|
|
Chwefror 2007
|
|
Mawrth 2007
|
|
Ebrill 2007
|
|
Mai 2007
|
|
Mehefin 2007
|
|
Gorffennaf 2007
|
|
Awst 2007
|
|
Medi 2007
|
|
Hydref 2007
|
|
Tachwedd 2007
|
|
Rhagfyr 2007
|
|
Ionawr 2008
|
|
Chwefror 2008
|
|
Mawrth 2008
|
|
Ebrill 2008
|
|
Mai 2008
|
|
Mehefin 2008
|
|
Gorffennaf 2008
|
|
Awst 2008
|
|
Medi 2008
|
|
Hydref 2008
|
|
Tachwedd 2008
|
|
Rhagfyr 2008
|
|
Ionawr 2009
|
|
Chwefror 2009
|
|
Mawrth 2009
|
|
Ebrill 2009
|
|
Mai 2009
|
|
Mehefin 2009
|
|
Gorffennaf 2009
|
|
Awst 2009
|
|
Medi 2009
|
|
Hydref 2009
|
|
Tachwedd 2009
|
|
Rhagfyr 2009
|
|
Ionawr 2010
|
|
Chwefror 2010
|
|
Mawrth 2010
|
|
Ebrill 2010
|
|
Mai 2010
|
|
Mehefin 2010
|
|
Gorffennaf 2010
|
|
Awst 2010
|
|
Medi 2010
|
|
Hydref 2010
|
|
Tachwedd 2010
|
|
Rhagfyr 2010
|
|
Ionawr 2011
|
|
Chwefror 2011
|
|
Mawrth 2011
|
|
Ebrill 2011
|
|
Mai 2011
|
|
Mehefin 2011
|
|
Gorffennaf 2011
|
|
Awst 2011
|
|
Medi 2011
|
|
Hydref 2011
|
|
Tachwedd 2011
|
|
Rhagfyr 2011
|
|
Ionawr 2012
|
185344.0
|
Chwefror 2012
|
184140.0
|
Mawrth 2012
|
181632.0
|
Ebrill 2012
|
185513.0
|
Mai 2012
|
186301.0
|
Mehefin 2012
|
186130.0
|
Gorffennaf 2012
|
188184.0
|
Awst 2012
|
188556.0
|
Medi 2012
|
186992.0
|
Hydref 2012
|
188045.0
|
Tachwedd 2012
|
187241.0
|
Rhagfyr 2012
|
186325.0
|
Ionawr 2013
|
186337.0
|
Chwefror 2013
|
184283.0
|
Mawrth 2013
|
188665.0
|
Ebrill 2013
|
188279.0
|
Mai 2013
|
187692.0
|
Mehefin 2013
|
189940.0
|
Gorffennaf 2013
|
193374.0
|
Awst 2013
|
193859.0
|
Medi 2013
|
193999.0
|
Hydref 2013
|
195232.0
|
Tachwedd 2013
|
194333.0
|
Rhagfyr 2013
|
198850.0
|
Ionawr 2014
|
196893.0
|
Chwefror 2014
|
198246.0
|
Mawrth 2014
|
199075.0
|
Ebrill 2014
|
203551.0
|
Mai 2014
|
206574.0
|
Mehefin 2014
|
208616.0
|
Gorffennaf 2014
|
211811.0
|
Awst 2014
|
213738.0
|
Medi 2014
|
216584.0
|
Hydref 2014
|
216972.0
|
Tachwedd 2014
|
215873.0
|
Rhagfyr 2014
|
216638.0
|
Ionawr 2015
|
217597.0
|
Chwefror 2015
|
219069.0
|
Mawrth 2015
|
219044.0
|
Ebrill 2015
|
220668.0
|
Mai 2015
|
223876.0
|
Mehefin 2015
|
224567.0
|
Gorffennaf 2015
|
230038.0
|
Awst 2015
|
232208.0
|
Medi 2015
|
235609.0
|
Hydref 2015
|
235916.0
|
Tachwedd 2015
|
238861.0
|
Rhagfyr 2015
|
239729.0
|
Ionawr 2016
|
241524.0
|
Chwefror 2016
|
241964.0
|
Mawrth 2016
|
246658.0
|
Ebrill 2016
|
245294.0
|
Mai 2016
|
249736.0
|
Mehefin 2016
|
253082.0
|
Gorffennaf 2016
|
255407.0
|
Awst 2016
|
256742.0
|
Medi 2016
|
258212.0
|
Hydref 2016
|
257952.0
|
Tachwedd 2016
|
259085.0
|
Rhagfyr 2016
|
261495.0
|
Ionawr 2017
|
260195.0
|
Chwefror 2017
|
263182.0
|
Mawrth 2017
|
261219.0
|
Ebrill 2017
|
265122.0
|
Mai 2017
|
267660.0
|
Mehefin 2017
|
268923.0
|
Gorffennaf 2017
|
273171.0
|
Awst 2017
|
272795.0
|
Medi 2017
|
274097.0
|
Hydref 2017
|
273982.0
|
Tachwedd 2017
|
272716.0
|
Rhagfyr 2017
|
274290.0
|
Ionawr 2018
|
274017.0
|
Chwefror 2018
|
273615.0
|
Mawrth 2018
|
271546.0
|
Ebrill 2018
|
272767.0
|
Mai 2018
|
273537.0
|
Mehefin 2018
|
274958.0
|
Gorffennaf 2018
|
279372.0
|
Awst 2018
|
279316.0
|
Medi 2018
|
278178.0
|
Hydref 2018
|
278610.0
|
Tachwedd 2018
|
279283.0
|
Rhagfyr 2018
|
276761.0
|
Ionawr 2019
|
274737.0
|
Chwefror 2019
|
275342.0
|
Mawrth 2019
|
271423.0
|
Ebrill 2019
|
272767.0
|
Mai 2019
|
274686.0
|
Mehefin 2019
|
274515.0
|
Gorffennaf 2019
|
276299.0
|
Awst 2019
|
275703.0
|
Medi 2019
|
277609.0
|
Hydref 2019
|
276475.0
|
Tachwedd 2019
|
275092.0
|
Rhagfyr 2019
|
276541.0
|
Ionawr 2020
|
273159.0
|
Dyddiad
|
Pryniannau arian parod
|
Ebrill 1992
|
|
Mai 1992
|
|
Mehefin 1992
|
|
Gorffennaf 1992
|
|
Awst 1992
|
|
Medi 1992
|
|
Hydref 1992
|
|
Tachwedd 1992
|
|
Rhagfyr 1992
|
|
Ionawr 1993
|
|
Chwefror 1993
|
|
Mawrth 1993
|
|
Ebrill 1993
|
|
Mai 1993
|
|
Mehefin 1993
|
|
Gorffennaf 1993
|
|
Awst 1993
|
|
Medi 1993
|
|
Hydref 1993
|
|
Tachwedd 1993
|
|
Rhagfyr 1993
|
|
Ionawr 1994
|
|
Chwefror 1994
|
|
Mawrth 1994
|
|
Ebrill 1994
|
|
Mai 1994
|
|
Mehefin 1994
|
|
Gorffennaf 1994
|
|
Awst 1994
|
|
Medi 1994
|
|
Hydref 1994
|
|
Tachwedd 1994
|
|
Rhagfyr 1994
|
|
Ionawr 1995
|
|
Chwefror 1995
|
|
Mawrth 1995
|
|
Ebrill 1995
|
|
Mai 1995
|
|
Mehefin 1995
|
|
Gorffennaf 1995
|
|
Awst 1995
|
|
Medi 1995
|
|
Hydref 1995
|
|
Tachwedd 1995
|
|
Rhagfyr 1995
|
|
Ionawr 1996
|
|
Chwefror 1996
|
|
Mawrth 1996
|
|
Ebrill 1996
|
|
Mai 1996
|
|
Mehefin 1996
|
|
Gorffennaf 1996
|
|
Awst 1996
|
|
Medi 1996
|
|
Hydref 1996
|
|
Tachwedd 1996
|
|
Rhagfyr 1996
|
|
Ionawr 1997
|
|
Chwefror 1997
|
|
Mawrth 1997
|
|
Ebrill 1997
|
|
Mai 1997
|
|
Mehefin 1997
|
|
Gorffennaf 1997
|
|
Awst 1997
|
|
Medi 1997
|
|
Hydref 1997
|
|
Tachwedd 1997
|
|
Rhagfyr 1997
|
|
Ionawr 1998
|
|
Chwefror 1998
|
|
Mawrth 1998
|
|
Ebrill 1998
|
|
Mai 1998
|
|
Mehefin 1998
|
|
Gorffennaf 1998
|
|
Awst 1998
|
|
Medi 1998
|
|
Hydref 1998
|
|
Tachwedd 1998
|
|
Rhagfyr 1998
|
|
Ionawr 1999
|
|
Chwefror 1999
|
|
Mawrth 1999
|
|
Ebrill 1999
|
|
Mai 1999
|
|
Mehefin 1999
|
|
Gorffennaf 1999
|
|
Awst 1999
|
|
Medi 1999
|
|
Hydref 1999
|
|
Tachwedd 1999
|
|
Rhagfyr 1999
|
|
Ionawr 2000
|
|
Chwefror 2000
|
|
Mawrth 2000
|
|
Ebrill 2000
|
|
Mai 2000
|
|
Mehefin 2000
|
|
Gorffennaf 2000
|
|
Awst 2000
|
|
Medi 2000
|
|
Hydref 2000
|
|
Tachwedd 2000
|
|
Rhagfyr 2000
|
|
Ionawr 2001
|
|
Chwefror 2001
|
|
Mawrth 2001
|
|
Ebrill 2001
|
|
Mai 2001
|
|
Mehefin 2001
|
|
Gorffennaf 2001
|
|
Awst 2001
|
|
Medi 2001
|
|
Hydref 2001
|
|
Tachwedd 2001
|
|
Rhagfyr 2001
|
|
Ionawr 2002
|
|
Chwefror 2002
|
|
Mawrth 2002
|
|
Ebrill 2002
|
|
Mai 2002
|
|
Mehefin 2002
|
|
Gorffennaf 2002
|
|
Awst 2002
|
|
Medi 2002
|
|
Hydref 2002
|
|
Tachwedd 2002
|
|
Rhagfyr 2002
|
|
Ionawr 2003
|
|
Chwefror 2003
|
|
Mawrth 2003
|
|
Ebrill 2003
|
|
Mai 2003
|
|
Mehefin 2003
|
|
Gorffennaf 2003
|
|
Awst 2003
|
|
Medi 2003
|
|
Hydref 2003
|
|
Tachwedd 2003
|
|
Rhagfyr 2003
|
|
Ionawr 2004
|
|
Chwefror 2004
|
|
Mawrth 2004
|
|
Ebrill 2004
|
|
Mai 2004
|
|
Mehefin 2004
|
|
Gorffennaf 2004
|
|
Awst 2004
|
|
Medi 2004
|
|
Hydref 2004
|
|
Tachwedd 2004
|
|
Rhagfyr 2004
|
|
Ionawr 2005
|
|
Chwefror 2005
|
|
Mawrth 2005
|
|
Ebrill 2005
|
|
Mai 2005
|
|
Mehefin 2005
|
|
Gorffennaf 2005
|
|
Awst 2005
|
|
Medi 2005
|
|
Hydref 2005
|
|
Tachwedd 2005
|
|
Rhagfyr 2005
|
|
Ionawr 2006
|
|
Chwefror 2006
|
|
Mawrth 2006
|
|
Ebrill 2006
|
|
Mai 2006
|
|
Mehefin 2006
|
|
Gorffennaf 2006
|
|
Awst 2006
|
|
Medi 2006
|
|
Hydref 2006
|
|
Tachwedd 2006
|
|
Rhagfyr 2006
|
|
Ionawr 2007
|
|
Chwefror 2007
|
|
Mawrth 2007
|
|
Ebrill 2007
|
|
Mai 2007
|
|
Mehefin 2007
|
|
Gorffennaf 2007
|
|
Awst 2007
|
|
Medi 2007
|
|
Hydref 2007
|
|
Tachwedd 2007
|
|
Rhagfyr 2007
|
|
Ionawr 2008
|
|
Chwefror 2008
|
|
Mawrth 2008
|
|
Ebrill 2008
|
|
Mai 2008
|
|
Mehefin 2008
|
|
Gorffennaf 2008
|
|
Awst 2008
|
|
Medi 2008
|
|
Hydref 2008
|
|
Tachwedd 2008
|
|
Rhagfyr 2008
|
|
Ionawr 2009
|
|
Chwefror 2009
|
|
Mawrth 2009
|
|
Ebrill 2009
|
|
Mai 2009
|
|
Mehefin 2009
|
|
Gorffennaf 2009
|
|
Awst 2009
|
|
Medi 2009
|
|
Hydref 2009
|
|
Tachwedd 2009
|
|
Rhagfyr 2009
|
|
Ionawr 2010
|
|
Chwefror 2010
|
|
Mawrth 2010
|
|
Ebrill 2010
|
|
Mai 2010
|
|
Mehefin 2010
|
|
Gorffennaf 2010
|
|
Awst 2010
|
|
Medi 2010
|
|
Hydref 2010
|
|
Tachwedd 2010
|
|
Rhagfyr 2010
|
|
Ionawr 2011
|
|
Chwefror 2011
|
|
Mawrth 2011
|
|
Ebrill 2011
|
|
Mai 2011
|
|
Mehefin 2011
|
|
Gorffennaf 2011
|
|
Awst 2011
|
|
Medi 2011
|
|
Hydref 2011
|
|
Tachwedd 2011
|
|
Rhagfyr 2011
|
|
Ionawr 2012
|
|
Chwefror 2012
|
|
Mawrth 2012
|
|
Ebrill 2012
|
|
Mai 2012
|
|
Mehefin 2012
|
|
Gorffennaf 2012
|
|
Awst 2012
|
|
Medi 2012
|
|
Hydref 2012
|
|
Tachwedd 2012
|
|
Rhagfyr 2012
|
|
Ionawr 2013
|
0.5
|
Chwefror 2013
|
0.1
|
Mawrth 2013
|
3.9
|
Ebrill 2013
|
1.5
|
Mai 2013
|
0.8
|
Mehefin 2013
|
2.0
|
Gorffennaf 2013
|
2.8
|
Awst 2013
|
2.8
|
Medi 2013
|
3.8
|
Hydref 2013
|
3.8
|
Tachwedd 2013
|
3.8
|
Rhagfyr 2013
|
6.7
|
Ionawr 2014
|
5.7
|
Chwefror 2014
|
7.6
|
Mawrth 2014
|
5.5
|
Ebrill 2014
|
8.1
|
Mai 2014
|
10.1
|
Mehefin 2014
|
9.8
|
Gorffennaf 2014
|
9.5
|
Awst 2014
|
10.2
|
Medi 2014
|
11.6
|
Hydref 2014
|
11.1
|
Tachwedd 2014
|
11.1
|
Rhagfyr 2014
|
9.0
|
Ionawr 2015
|
10.5
|
Chwefror 2015
|
10.5
|
Mawrth 2015
|
10.0
|
Ebrill 2015
|
8.4
|
Mai 2015
|
8.4
|
Mehefin 2015
|
7.6
|
Gorffennaf 2015
|
8.6
|
Awst 2015
|
8.6
|
Medi 2015
|
8.8
|
Hydref 2015
|
8.7
|
Tachwedd 2015
|
10.6
|
Rhagfyr 2015
|
10.7
|
Ionawr 2016
|
11.0
|
Chwefror 2016
|
10.4
|
Mawrth 2016
|
12.6
|
Ebrill 2016
|
11.2
|
Mai 2016
|
11.6
|
Mehefin 2016
|
12.7
|
Gorffennaf 2016
|
11.0
|
Awst 2016
|
10.6
|
Medi 2016
|
9.6
|
Hydref 2016
|
9.3
|
Tachwedd 2016
|
8.5
|
Rhagfyr 2016
|
9.1
|
Ionawr 2017
|
7.7
|
Chwefror 2017
|
8.8
|
Mawrth 2017
|
5.9
|
Ebrill 2017
|
8.1
|
Mai 2017
|
7.2
|
Mehefin 2017
|
6.3
|
Gorffennaf 2017
|
7.0
|
Awst 2017
|
6.2
|
Medi 2017
|
6.2
|
Hydref 2017
|
6.2
|
Tachwedd 2017
|
5.3
|
Rhagfyr 2017
|
4.9
|
Ionawr 2018
|
5.3
|
Chwefror 2018
|
4.0
|
Mawrth 2018
|
4.0
|
Ebrill 2018
|
2.9
|
Mai 2018
|
2.2
|
Mehefin 2018
|
2.2
|
Gorffennaf 2018
|
2.3
|
Awst 2018
|
2.4
|
Medi 2018
|
1.5
|
Hydref 2018
|
1.7
|
Tachwedd 2018
|
2.4
|
Rhagfyr 2018
|
0.9
|
Ionawr 2019
|
0.3
|
Chwefror 2019
|
0.6
|
Mawrth 2019
|
-0.1
|
Ebrill 2019
|
0.0
|
Mai 2019
|
0.4
|
Mehefin 2019
|
-0.2
|
Gorffennaf 2019
|
-1.1
|
Awst 2019
|
-1.3
|
Medi 2019
|
-0.2
|
Hydref 2019
|
-0.8
|
Tachwedd 2019
|
-1.5
|
Rhagfyr 2019
|
-0.1
|
Ionawr 2020
|
-0.6
|
Dyddiad
|
Pryniannau arian parod
|
Ebrill 1992
|
|
Mai 1992
|
|
Mehefin 1992
|
|
Gorffennaf 1992
|
|
Awst 1992
|
|
Medi 1992
|
|
Hydref 1992
|
|
Tachwedd 1992
|
|
Rhagfyr 1992
|
|
Ionawr 1993
|
|
Chwefror 1993
|
|
Mawrth 1993
|
|
Ebrill 1993
|
|
Mai 1993
|
|
Mehefin 1993
|
|
Gorffennaf 1993
|
|
Awst 1993
|
|
Medi 1993
|
|
Hydref 1993
|
|
Tachwedd 1993
|
|
Rhagfyr 1993
|
|
Ionawr 1994
|
|
Chwefror 1994
|
|
Mawrth 1994
|
|
Ebrill 1994
|
|
Mai 1994
|
|
Mehefin 1994
|
|
Gorffennaf 1994
|
|
Awst 1994
|
|
Medi 1994
|
|
Hydref 1994
|
|
Tachwedd 1994
|
|
Rhagfyr 1994
|
|
Ionawr 1995
|
|
Chwefror 1995
|
|
Mawrth 1995
|
|
Ebrill 1995
|
|
Mai 1995
|
|
Mehefin 1995
|
|
Gorffennaf 1995
|
|
Awst 1995
|
|
Medi 1995
|
|
Hydref 1995
|
|
Tachwedd 1995
|
|
Rhagfyr 1995
|
|
Ionawr 1996
|
|
Chwefror 1996
|
|
Mawrth 1996
|
|
Ebrill 1996
|
|
Mai 1996
|
|
Mehefin 1996
|
|
Gorffennaf 1996
|
|
Awst 1996
|
|
Medi 1996
|
|
Hydref 1996
|
|
Tachwedd 1996
|
|
Rhagfyr 1996
|
|
Ionawr 1997
|
|
Chwefror 1997
|
|
Mawrth 1997
|
|
Ebrill 1997
|
|
Mai 1997
|
|
Mehefin 1997
|
|
Gorffennaf 1997
|
|
Awst 1997
|
|
Medi 1997
|
|
Hydref 1997
|
|
Tachwedd 1997
|
|
Rhagfyr 1997
|
|
Ionawr 1998
|
|
Chwefror 1998
|
|
Mawrth 1998
|
|
Ebrill 1998
|
|
Mai 1998
|
|
Mehefin 1998
|
|
Gorffennaf 1998
|
|
Awst 1998
|
|
Medi 1998
|
|
Hydref 1998
|
|
Tachwedd 1998
|
|
Rhagfyr 1998
|
|
Ionawr 1999
|
|
Chwefror 1999
|
|
Mawrth 1999
|
|
Ebrill 1999
|
|
Mai 1999
|
|
Mehefin 1999
|
|
Gorffennaf 1999
|
|
Awst 1999
|
|
Medi 1999
|
|
Hydref 1999
|
|
Tachwedd 1999
|
|
Rhagfyr 1999
|
|
Ionawr 2000
|
|
Chwefror 2000
|
|
Mawrth 2000
|
|
Ebrill 2000
|
|
Mai 2000
|
|
Mehefin 2000
|
|
Gorffennaf 2000
|
|
Awst 2000
|
|
Medi 2000
|
|
Hydref 2000
|
|
Tachwedd 2000
|
|
Rhagfyr 2000
|
|
Ionawr 2001
|
|
Chwefror 2001
|
|
Mawrth 2001
|
|
Ebrill 2001
|
|
Mai 2001
|
|
Mehefin 2001
|
|
Gorffennaf 2001
|
|
Awst 2001
|
|
Medi 2001
|
|
Hydref 2001
|
|
Tachwedd 2001
|
|
Rhagfyr 2001
|
|
Ionawr 2002
|
|
Chwefror 2002
|
|
Mawrth 2002
|
|
Ebrill 2002
|
|
Mai 2002
|
|
Mehefin 2002
|
|
Gorffennaf 2002
|
|
Awst 2002
|
|
Medi 2002
|
|
Hydref 2002
|
|
Tachwedd 2002
|
|
Rhagfyr 2002
|
|
Ionawr 2003
|
|
Chwefror 2003
|
|
Mawrth 2003
|
|
Ebrill 2003
|
|
Mai 2003
|
|
Mehefin 2003
|
|
Gorffennaf 2003
|
|
Awst 2003
|
|
Medi 2003
|
|
Hydref 2003
|
|
Tachwedd 2003
|
|
Rhagfyr 2003
|
|
Ionawr 2004
|
|
Chwefror 2004
|
|
Mawrth 2004
|
|
Ebrill 2004
|
|
Mai 2004
|
|
Mehefin 2004
|
|
Gorffennaf 2004
|
|
Awst 2004
|
|
Medi 2004
|
|
Hydref 2004
|
|
Tachwedd 2004
|
|
Rhagfyr 2004
|
|
Ionawr 2005
|
|
Chwefror 2005
|
|
Mawrth 2005
|
|
Ebrill 2005
|
|
Mai 2005
|
|
Mehefin 2005
|
|
Gorffennaf 2005
|
|
Awst 2005
|
|
Medi 2005
|
|
Hydref 2005
|
|
Tachwedd 2005
|
|
Rhagfyr 2005
|
|
Ionawr 2006
|
|
Chwefror 2006
|
|
Mawrth 2006
|
|
Ebrill 2006
|
|
Mai 2006
|
|
Mehefin 2006
|
|
Gorffennaf 2006
|
|
Awst 2006
|
|
Medi 2006
|
|
Hydref 2006
|
|
Tachwedd 2006
|
|
Rhagfyr 2006
|
|
Ionawr 2007
|
|
Chwefror 2007
|
|
Mawrth 2007
|
|
Ebrill 2007
|
|
Mai 2007
|
|
Mehefin 2007
|
|
Gorffennaf 2007
|
|
Awst 2007
|
|
Medi 2007
|
|
Hydref 2007
|
|
Tachwedd 2007
|
|
Rhagfyr 2007
|
|
Ionawr 2008
|
|
Chwefror 2008
|
|
Mawrth 2008
|
|
Ebrill 2008
|
|
Mai 2008
|
|
Mehefin 2008
|
|
Gorffennaf 2008
|
|
Awst 2008
|
|
Medi 2008
|
|
Hydref 2008
|
|
Tachwedd 2008
|
|
Rhagfyr 2008
|
|
Ionawr 2009
|
|
Chwefror 2009
|
|
Mawrth 2009
|
|
Ebrill 2009
|
|
Mai 2009
|
|
Mehefin 2009
|
|
Gorffennaf 2009
|
|
Awst 2009
|
|
Medi 2009
|
|
Hydref 2009
|
|
Tachwedd 2009
|
|
Rhagfyr 2009
|
|
Ionawr 2010
|
|
Chwefror 2010
|
|
Mawrth 2010
|
|
Ebrill 2010
|
|
Mai 2010
|
|
Mehefin 2010
|
|
Gorffennaf 2010
|
|
Awst 2010
|
|
Medi 2010
|
|
Hydref 2010
|
|
Tachwedd 2010
|
|
Rhagfyr 2010
|
|
Ionawr 2011
|
|
Chwefror 2011
|
|
Mawrth 2011
|
|
Ebrill 2011
|
|
Mai 2011
|
|
Mehefin 2011
|
|
Gorffennaf 2011
|
|
Awst 2011
|
|
Medi 2011
|
|
Hydref 2011
|
|
Tachwedd 2011
|
|
Rhagfyr 2011
|
|
Ionawr 2012
|
|
Chwefror 2012
|
-0.6
|
Mawrth 2012
|
-1.4
|
Ebrill 2012
|
2.1
|
Mai 2012
|
0.4
|
Mehefin 2012
|
-0.1
|
Gorffennaf 2012
|
1.1
|
Awst 2012
|
0.2
|
Medi 2012
|
-0.8
|
Hydref 2012
|
0.6
|
Tachwedd 2012
|
-0.4
|
Rhagfyr 2012
|
-0.5
|
Ionawr 2013
|
0.0
|
Chwefror 2013
|
-1.1
|
Mawrth 2013
|
2.4
|
Ebrill 2013
|
-0.2
|
Mai 2013
|
-0.3
|
Mehefin 2013
|
1.2
|
Gorffennaf 2013
|
1.8
|
Awst 2013
|
0.2
|
Medi 2013
|
0.1
|
Hydref 2013
|
0.6
|
Tachwedd 2013
|
-0.5
|
Rhagfyr 2013
|
2.3
|
Ionawr 2014
|
-1.0
|
Chwefror 2014
|
0.7
|
Mawrth 2014
|
0.4
|
Ebrill 2014
|
2.2
|
Mai 2014
|
1.5
|
Mehefin 2014
|
1.0
|
Gorffennaf 2014
|
1.5
|
Awst 2014
|
0.9
|
Medi 2014
|
1.3
|
Hydref 2014
|
0.2
|
Tachwedd 2014
|
-0.5
|
Rhagfyr 2014
|
0.4
|
Ionawr 2015
|
0.4
|
Chwefror 2015
|
0.7
|
Mawrth 2015
|
-0.0
|
Ebrill 2015
|
0.7
|
Mai 2015
|
1.4
|
Mehefin 2015
|
0.3
|
Gorffennaf 2015
|
2.4
|
Awst 2015
|
0.9
|
Medi 2015
|
1.5
|
Hydref 2015
|
0.1
|
Tachwedd 2015
|
1.2
|
Rhagfyr 2015
|
0.4
|
Ionawr 2016
|
0.8
|
Chwefror 2016
|
0.2
|
Mawrth 2016
|
1.9
|
Ebrill 2016
|
-0.6
|
Mai 2016
|
1.8
|
Mehefin 2016
|
1.3
|
Gorffennaf 2016
|
0.9
|
Awst 2016
|
0.5
|
Medi 2016
|
0.6
|
Hydref 2016
|
-0.1
|
Tachwedd 2016
|
0.4
|
Rhagfyr 2016
|
0.9
|
Ionawr 2017
|
-0.5
|
Chwefror 2017
|
1.2
|
Mawrth 2017
|
-0.8
|
Ebrill 2017
|
1.5
|
Mai 2017
|
1.0
|
Mehefin 2017
|
0.5
|
Gorffennaf 2017
|
1.6
|
Awst 2017
|
-0.1
|
Medi 2017
|
0.5
|
Hydref 2017
|
-0.0
|
Tachwedd 2017
|
-0.5
|
Rhagfyr 2017
|
0.6
|
Ionawr 2018
|
-0.1
|
Chwefror 2018
|
-0.2
|
Mawrth 2018
|
-0.8
|
Ebrill 2018
|
0.4
|
Mai 2018
|
0.3
|
Mehefin 2018
|
0.5
|
Gorffennaf 2018
|
1.6
|
Awst 2018
|
-0.0
|
Medi 2018
|
-0.4
|
Hydref 2018
|
0.2
|
Tachwedd 2018
|
0.2
|
Rhagfyr 2018
|
-0.9
|
Ionawr 2019
|
-0.7
|
Chwefror 2019
|
0.2
|
Mawrth 2019
|
-1.4
|
Ebrill 2019
|
0.5
|
Mai 2019
|
0.7
|
Mehefin 2019
|
-0.1
|
Gorffennaf 2019
|
0.6
|
Awst 2019
|
-0.2
|
Medi 2019
|
0.7
|
Hydref 2019
|
-0.4
|
Tachwedd 2019
|
-0.5
|
Rhagfyr 2019
|
0.5
|
Ionawr 2020
|
-1.2
|
Dyddiad
|
Pryniannau arian parod
|
Ebrill 1992
|
|
Mai 1992
|
|
Mehefin 1992
|
|
Gorffennaf 1992
|
|
Awst 1992
|
|
Medi 1992
|
|
Hydref 1992
|
|
Tachwedd 1992
|
|
Rhagfyr 1992
|
|
Ionawr 1993
|
|
Chwefror 1993
|
|
Mawrth 1993
|
|
Ebrill 1993
|
|
Mai 1993
|
|
Mehefin 1993
|
|
Gorffennaf 1993
|
|
Awst 1993
|
|
Medi 1993
|
|
Hydref 1993
|
|
Tachwedd 1993
|
|
Rhagfyr 1993
|
|
Ionawr 1994
|
|
Chwefror 1994
|
|
Mawrth 1994
|
|
Ebrill 1994
|
|
Mai 1994
|
|
Mehefin 1994
|
|
Gorffennaf 1994
|
|
Awst 1994
|
|
Medi 1994
|
|
Hydref 1994
|
|
Tachwedd 1994
|
|
Rhagfyr 1994
|
|
Ionawr 1995
|
|
Chwefror 1995
|
|
Mawrth 1995
|
|
Ebrill 1995
|
|
Mai 1995
|
|
Mehefin 1995
|
|
Gorffennaf 1995
|
|
Awst 1995
|
|
Medi 1995
|
|
Hydref 1995
|
|
Tachwedd 1995
|
|
Rhagfyr 1995
|
|
Ionawr 1996
|
|
Chwefror 1996
|
|
Mawrth 1996
|
|
Ebrill 1996
|
|
Mai 1996
|
|
Mehefin 1996
|
|
Gorffennaf 1996
|
|
Awst 1996
|
|
Medi 1996
|
|
Hydref 1996
|
|
Tachwedd 1996
|
|
Rhagfyr 1996
|
|
Ionawr 1997
|
|
Chwefror 1997
|
|
Mawrth 1997
|
|
Ebrill 1997
|
|
Mai 1997
|
|
Mehefin 1997
|
|
Gorffennaf 1997
|
|
Awst 1997
|
|
Medi 1997
|
|
Hydref 1997
|
|
Tachwedd 1997
|
|
Rhagfyr 1997
|
|
Ionawr 1998
|
|
Chwefror 1998
|
|
Mawrth 1998
|
|
Ebrill 1998
|
|
Mai 1998
|
|
Mehefin 1998
|
|
Gorffennaf 1998
|
|
Awst 1998
|
|
Medi 1998
|
|
Hydref 1998
|
|
Tachwedd 1998
|
|
Rhagfyr 1998
|
|
Ionawr 1999
|
|
Chwefror 1999
|
|
Mawrth 1999
|
|
Ebrill 1999
|
|
Mai 1999
|
|
Mehefin 1999
|
|
Gorffennaf 1999
|
|
Awst 1999
|
|
Medi 1999
|
|
Hydref 1999
|
|
Tachwedd 1999
|
|
Rhagfyr 1999
|
|
Ionawr 2000
|
|
Chwefror 2000
|
|
Mawrth 2000
|
|
Ebrill 2000
|
|
Mai 2000
|
|
Mehefin 2000
|
|
Gorffennaf 2000
|
|
Awst 2000
|
|
Medi 2000
|
|
Hydref 2000
|
|
Tachwedd 2000
|
|
Rhagfyr 2000
|
|
Ionawr 2001
|
|
Chwefror 2001
|
|
Mawrth 2001
|
|
Ebrill 2001
|
|
Mai 2001
|
|
Mehefin 2001
|
|
Gorffennaf 2001
|
|
Awst 2001
|
|
Medi 2001
|
|
Hydref 2001
|
|
Tachwedd 2001
|
|
Rhagfyr 2001
|
|
Ionawr 2002
|
|
Chwefror 2002
|
|
Mawrth 2002
|
|
Ebrill 2002
|
|
Mai 2002
|
|
Mehefin 2002
|
|
Gorffennaf 2002
|
|
Awst 2002
|
|
Medi 2002
|
|
Hydref 2002
|
|
Tachwedd 2002
|
|
Rhagfyr 2002
|
|
Ionawr 2003
|
|
Chwefror 2003
|
|
Mawrth 2003
|
|
Ebrill 2003
|
|
Mai 2003
|
|
Mehefin 2003
|
|
Gorffennaf 2003
|
|
Awst 2003
|
|
Medi 2003
|
|
Hydref 2003
|
|
Tachwedd 2003
|
|
Rhagfyr 2003
|
|
Ionawr 2004
|
|
Chwefror 2004
|
|
Mawrth 2004
|
|
Ebrill 2004
|
|
Mai 2004
|
|
Mehefin 2004
|
|
Gorffennaf 2004
|
|
Awst 2004
|
|
Medi 2004
|
|
Hydref 2004
|
|
Tachwedd 2004
|
|
Rhagfyr 2004
|
|
Ionawr 2005
|
|
Chwefror 2005
|
|
Mawrth 2005
|
|
Ebrill 2005
|
|
Mai 2005
|
|
Mehefin 2005
|
|
Gorffennaf 2005
|
|
Awst 2005
|
|
Medi 2005
|
|
Hydref 2005
|
|
Tachwedd 2005
|
|
Rhagfyr 2005
|
|
Ionawr 2006
|
|
Chwefror 2006
|
|
Mawrth 2006
|
|
Ebrill 2006
|
|
Mai 2006
|
|
Mehefin 2006
|
|
Gorffennaf 2006
|
|
Awst 2006
|
|
Medi 2006
|
|
Hydref 2006
|
|
Tachwedd 2006
|
|
Rhagfyr 2006
|
|
Ionawr 2007
|
|
Chwefror 2007
|
|
Mawrth 2007
|
|
Ebrill 2007
|
|
Mai 2007
|
|
Mehefin 2007
|
|
Gorffennaf 2007
|
|
Awst 2007
|
|
Medi 2007
|
|
Hydref 2007
|
|
Tachwedd 2007
|
|
Rhagfyr 2007
|
|
Ionawr 2008
|
|
Chwefror 2008
|
|
Mawrth 2008
|
|
Ebrill 2008
|
|
Mai 2008
|
|
Mehefin 2008
|
|
Gorffennaf 2008
|
|
Awst 2008
|
|
Medi 2008
|
|
Hydref 2008
|
|
Tachwedd 2008
|
|
Rhagfyr 2008
|
|
Ionawr 2009
|
|
Chwefror 2009
|
|
Mawrth 2009
|
|
Ebrill 2009
|
|
Mai 2009
|
|
Mehefin 2009
|
|
Gorffennaf 2009
|
|
Awst 2009
|
|
Medi 2009
|
|
Hydref 2009
|
|
Tachwedd 2009
|
|
Rhagfyr 2009
|
|
Ionawr 2010
|
|
Chwefror 2010
|
|
Mawrth 2010
|
|
Ebrill 2010
|
|
Mai 2010
|
|
Mehefin 2010
|
|
Gorffennaf 2010
|
|
Awst 2010
|
|
Medi 2010
|
|
Hydref 2010
|
|
Tachwedd 2010
|
|
Rhagfyr 2010
|
|
Ionawr 2011
|
|
Chwefror 2011
|
|
Mawrth 2011
|
|
Ebrill 2011
|
|
Mai 2011
|
|
Mehefin 2011
|
|
Gorffennaf 2011
|
|
Awst 2011
|
|
Medi 2011
|
|
Hydref 2011
|
|
Tachwedd 2011
|
|
Rhagfyr 2011
|
|
Ionawr 2012
|
85.2
|
Chwefror 2012
|
84.6
|
Mawrth 2012
|
83.5
|
Ebrill 2012
|
85.3
|
Mai 2012
|
85.6
|
Mehefin 2012
|
85.5
|
Gorffennaf 2012
|
86.5
|
Awst 2012
|
86.6
|
Medi 2012
|
85.9
|
Hydref 2012
|
86.4
|
Tachwedd 2012
|
86.0
|
Rhagfyr 2012
|
85.6
|
Ionawr 2013
|
85.6
|
Chwefror 2013
|
84.7
|
Mawrth 2013
|
86.7
|
Ebrill 2013
|
86.5
|
Mai 2013
|
86.3
|
Mehefin 2013
|
87.3
|
Gorffennaf 2013
|
88.9
|
Awst 2013
|
89.1
|
Medi 2013
|
89.2
|
Hydref 2013
|
89.7
|
Tachwedd 2013
|
89.3
|
Rhagfyr 2013
|
91.4
|
Ionawr 2014
|
90.5
|
Chwefror 2014
|
91.1
|
Mawrth 2014
|
91.5
|
Ebrill 2014
|
93.5
|
Mai 2014
|
94.9
|
Mehefin 2014
|
95.9
|
Gorffennaf 2014
|
97.3
|
Awst 2014
|
98.2
|
Medi 2014
|
99.5
|
Hydref 2014
|
99.7
|
Tachwedd 2014
|
99.2
|
Rhagfyr 2014
|
99.6
|
Ionawr 2015
|
100.0
|
Chwefror 2015
|
100.7
|
Mawrth 2015
|
100.7
|
Ebrill 2015
|
101.4
|
Mai 2015
|
102.9
|
Mehefin 2015
|
103.2
|
Gorffennaf 2015
|
105.7
|
Awst 2015
|
106.7
|
Medi 2015
|
108.3
|
Hydref 2015
|
108.4
|
Tachwedd 2015
|
109.8
|
Rhagfyr 2015
|
110.2
|
Ionawr 2016
|
111.0
|
Chwefror 2016
|
111.2
|
Mawrth 2016
|
113.4
|
Ebrill 2016
|
112.7
|
Mai 2016
|
114.8
|
Mehefin 2016
|
116.3
|
Gorffennaf 2016
|
117.4
|
Awst 2016
|
118.0
|
Medi 2016
|
118.7
|
Hydref 2016
|
118.6
|
Tachwedd 2016
|
119.1
|
Rhagfyr 2016
|
120.2
|
Ionawr 2017
|
119.6
|
Chwefror 2017
|
121.0
|
Mawrth 2017
|
120.0
|
Ebrill 2017
|
121.8
|
Mai 2017
|
123.0
|
Mehefin 2017
|
123.6
|
Gorffennaf 2017
|
125.5
|
Awst 2017
|
125.4
|
Medi 2017
|
126.0
|
Hydref 2017
|
125.9
|
Tachwedd 2017
|
125.3
|
Rhagfyr 2017
|
126.0
|
Ionawr 2018
|
125.9
|
Chwefror 2018
|
125.7
|
Mawrth 2018
|
124.8
|
Ebrill 2018
|
125.4
|
Mai 2018
|
125.7
|
Mehefin 2018
|
126.4
|
Gorffennaf 2018
|
128.4
|
Awst 2018
|
128.4
|
Medi 2018
|
127.8
|
Hydref 2018
|
128.0
|
Tachwedd 2018
|
128.4
|
Rhagfyr 2018
|
127.2
|
Ionawr 2019
|
126.3
|
Chwefror 2019
|
126.5
|
Mawrth 2019
|
124.7
|
Ebrill 2019
|
125.4
|
Mai 2019
|
126.2
|
Mehefin 2019
|
126.2
|
Gorffennaf 2019
|
127.0
|
Awst 2019
|
126.7
|
Medi 2019
|
127.6
|
Hydref 2019
|
127.1
|
Tachwedd 2019
|
126.4
|
Rhagfyr 2019
|
127.1
|
Ionawr 2020
|
125.5
|
Statws yr eiddo
Tracio’r mynegai, pris cyfartalog a’r newid misol a blynyddol a nifer y gwerthiannau yn ôl cyllido yn ôl statws yr eiddo, e.e. Newydd/Presennol
Dyddiad
|
Adeilad newydd
|
Eiddo presennol
|
Ebrill 1992
|
|
|
Mai 1992
|
|
|
Mehefin 1992
|
|
|
Gorffennaf 1992
|
|
|
Awst 1992
|
|
|
Medi 1992
|
|
|
Hydref 1992
|
|
|
Tachwedd 1992
|
|
|
Rhagfyr 1992
|
|
|
Ionawr 1993
|
|
|
Chwefror 1993
|
|
|
Mawrth 1993
|
|
|
Ebrill 1993
|
|
|
Mai 1993
|
|
|
Mehefin 1993
|
|
|
Gorffennaf 1993
|
|
|
Awst 1993
|
|
|
Medi 1993
|
|
|
Hydref 1993
|
|
|
Tachwedd 1993
|
|
|
Rhagfyr 1993
|
|
|
Ionawr 1994
|
|
|
Chwefror 1994
|
|
|
Mawrth 1994
|
|
|
Ebrill 1994
|
|
|
Mai 1994
|
|
|
Mehefin 1994
|
|
|
Gorffennaf 1994
|
|
|
Awst 1994
|
|
|
Medi 1994
|
|
|
Hydref 1994
|
|
|
Tachwedd 1994
|
|
|
Rhagfyr 1994
|
|
|
Ionawr 1995
|
68367.0
|
55901.0
|
Chwefror 1995
|
68360.0
|
55776.0
|
Mawrth 1995
|
68195.0
|
55307.0
|
Ebrill 1995
|
67631.0
|
55856.0
|
Mai 1995
|
68027.0
|
55693.0
|
Mehefin 1995
|
68046.0
|
55467.0
|
Gorffennaf 1995
|
68694.0
|
56483.0
|
Awst 1995
|
68258.0
|
55953.0
|
Medi 1995
|
66909.0
|
55606.0
|
Hydref 1995
|
67233.0
|
54366.0
|
Tachwedd 1995
|
68019.0
|
54992.0
|
Rhagfyr 1995
|
68042.0
|
54576.0
|
Ionawr 1996
|
68370.0
|
53957.0
|
Chwefror 1996
|
68892.0
|
54213.0
|
Mawrth 1996
|
68083.0
|
54026.0
|
Ebrill 1996
|
68655.0
|
54817.0
|
Mai 1996
|
67894.0
|
55273.0
|
Mehefin 1996
|
69728.0
|
55567.0
|
Gorffennaf 1996
|
69639.0
|
56114.0
|
Awst 1996
|
70590.0
|
56993.0
|
Medi 1996
|
69919.0
|
56689.0
|
Hydref 1996
|
70490.0
|
56684.0
|
Tachwedd 1996
|
71022.0
|
57473.0
|
Rhagfyr 1996
|
71392.0
|
58044.0
|
Ionawr 1997
|
71480.0
|
58166.0
|
Chwefror 1997
|
72645.0
|
58708.0
|
Mawrth 1997
|
72654.0
|
58915.0
|
Ebrill 1997
|
72678.0
|
59463.0
|
Mai 1997
|
74055.0
|
60855.0
|
Mehefin 1997
|
74854.0
|
61930.0
|
Gorffennaf 1997
|
76059.0
|
63375.0
|
Awst 1997
|
76475.0
|
63872.0
|
Medi 1997
|
77887.0
|
64089.0
|
Hydref 1997
|
78497.0
|
65223.0
|
Tachwedd 1997
|
78300.0
|
64627.0
|
Rhagfyr 1997
|
79837.0
|
65211.0
|
Ionawr 1998
|
81387.0
|
65811.0
|
Chwefror 1998
|
81940.0
|
65576.0
|
Mawrth 1998
|
81694.0
|
65878.0
|
Ebrill 1998
|
83310.0
|
67482.0
|
Mai 1998
|
83440.0
|
68695.0
|
Mehefin 1998
|
84719.0
|
68957.0
|
Gorffennaf 1998
|
85304.0
|
69911.0
|
Awst 1998
|
86046.0
|
70020.0
|
Medi 1998
|
85389.0
|
70705.0
|
Hydref 1998
|
86529.0
|
70454.0
|
Tachwedd 1998
|
86371.0
|
70066.0
|
Rhagfyr 1998
|
87012.0
|
70095.0
|
Ionawr 1999
|
88410.0
|
70706.0
|
Chwefror 1999
|
87928.0
|
70818.0
|
Mawrth 1999
|
87658.0
|
70745.0
|
Ebrill 1999
|
88239.0
|
72452.0
|
Mai 1999
|
90683.0
|
73043.0
|
Mehefin 1999
|
92080.0
|
74573.0
|
Gorffennaf 1999
|
93277.0
|
75947.0
|
Awst 1999
|
94032.0
|
77008.0
|
Medi 1999
|
95579.0
|
78759.0
|
Hydref 1999
|
96729.0
|
79171.0
|
Tachwedd 1999
|
98316.0
|
80978.0
|
Rhagfyr 1999
|
102144.0
|
82428.0
|
Ionawr 2000
|
101749.0
|
82872.0
|
Chwefror 2000
|
102305.0
|
82600.0
|
Mawrth 2000
|
103913.0
|
84568.0
|
Ebrill 2000
|
107311.0
|
87853.0
|
Mai 2000
|
109923.0
|
89767.0
|
Mehefin 2000
|
109446.0
|
90272.0
|
Gorffennaf 2000
|
112920.0
|
92349.0
|
Awst 2000
|
115456.0
|
93542.0
|
Medi 2000
|
115374.0
|
94082.0
|
Hydref 2000
|
114150.0
|
92974.0
|
Tachwedd 2000
|
116453.0
|
93472.0
|
Rhagfyr 2000
|
117943.0
|
94535.0
|
Ionawr 2001
|
120033.0
|
94821.0
|
Chwefror 2001
|
121451.0
|
94732.0
|
Mawrth 2001
|
121291.0
|
96214.0
|
Ebrill 2001
|
123611.0
|
97893.0
|
Mai 2001
|
123102.0
|
100131.0
|
Mehefin 2001
|
127170.0
|
101104.0
|
Gorffennaf 2001
|
128266.0
|
103385.0
|
Awst 2001
|
133269.0
|
106137.0
|
Medi 2001
|
135800.0
|
106428.0
|
Hydref 2001
|
136547.0
|
107119.0
|
Tachwedd 2001
|
136953.0
|
108549.0
|
Rhagfyr 2001
|
140304.0
|
109450.0
|
Ionawr 2002
|
141467.0
|
110124.0
|
Chwefror 2002
|
145023.0
|
110944.0
|
Mawrth 2002
|
144777.0
|
113570.0
|
Ebrill 2002
|
150372.0
|
117722.0
|
Mai 2002
|
152299.0
|
120837.0
|
Mehefin 2002
|
155118.0
|
122771.0
|
Gorffennaf 2002
|
158397.0
|
127191.0
|
Awst 2002
|
163033.0
|
130600.0
|
Medi 2002
|
162169.0
|
131946.0
|
Hydref 2002
|
166681.0
|
134829.0
|
Tachwedd 2002
|
169556.0
|
138428.0
|
Rhagfyr 2002
|
171412.0
|
139598.0
|
Ionawr 2003
|
172698.0
|
142753.0
|
Chwefror 2003
|
175430.0
|
142506.0
|
Mawrth 2003
|
177676.0
|
143535.0
|
Ebrill 2003
|
179929.0
|
146646.0
|
Mai 2003
|
179767.0
|
147416.0
|
Mehefin 2003
|
182036.0
|
146948.0
|
Gorffennaf 2003
|
185561.0
|
151133.0
|
Awst 2003
|
184818.0
|
151902.0
|
Medi 2003
|
183736.0
|
151744.0
|
Hydref 2003
|
185919.0
|
153091.0
|
Tachwedd 2003
|
186689.0
|
153806.0
|
Rhagfyr 2003
|
188414.0
|
155379.0
|
Ionawr 2004
|
192722.0
|
157186.0
|
Chwefror 2004
|
195465.0
|
157479.0
|
Mawrth 2004
|
195836.0
|
158979.0
|
Ebrill 2004
|
194338.0
|
162984.0
|
Mai 2004
|
199185.0
|
164049.0
|
Mehefin 2004
|
205331.0
|
167330.0
|
Gorffennaf 2004
|
200346.0
|
170248.0
|
Awst 2004
|
204378.0
|
172438.0
|
Medi 2004
|
207086.0
|
173042.0
|
Hydref 2004
|
208388.0
|
173277.0
|
Tachwedd 2004
|
210810.0
|
173342.0
|
Rhagfyr 2004
|
211329.0
|
172171.0
|
Ionawr 2005
|
215241.0
|
172219.0
|
Chwefror 2005
|
215309.0
|
170238.0
|
Mawrth 2005
|
214963.0
|
170486.0
|
Ebrill 2005
|
216972.0
|
170882.0
|
Mai 2005
|
218958.0
|
173797.0
|
Mehefin 2005
|
219431.0
|
174825.0
|
Gorffennaf 2005
|
220061.0
|
176112.0
|
Awst 2005
|
220237.0
|
175743.0
|
Medi 2005
|
220298.0
|
176180.0
|
Hydref 2005
|
220651.0
|
175046.0
|
Tachwedd 2005
|
220788.0
|
174824.0
|
Rhagfyr 2005
|
224157.0
|
175923.0
|
Ionawr 2006
|
221491.0
|
175632.0
|
Chwefror 2006
|
225185.0
|
175528.0
|
Mawrth 2006
|
225262.0
|
177063.0
|
Ebrill 2006
|
227473.0
|
179956.0
|
Mai 2006
|
229407.0
|
181535.0
|
Mehefin 2006
|
228053.0
|
181974.0
|
Gorffennaf 2006
|
230358.0
|
185827.0
|
Awst 2006
|
229637.0
|
187750.0
|
Medi 2006
|
231489.0
|
187641.0
|
Hydref 2006
|
233670.0
|
188845.0
|
Tachwedd 2006
|
231858.0
|
189763.0
|
Rhagfyr 2006
|
237329.0
|
191622.0
|
Ionawr 2007
|
237081.0
|
191747.0
|
Chwefror 2007
|
237533.0
|
192155.0
|
Mawrth 2007
|
236826.0
|
193950.0
|
Ebrill 2007
|
239233.0
|
196390.0
|
Mai 2007
|
246713.0
|
197906.0
|
Mehefin 2007
|
246280.0
|
201701.0
|
Gorffennaf 2007
|
250349.0
|
203451.0
|
Awst 2007
|
245244.0
|
205341.0
|
Medi 2007
|
248366.0
|
206045.0
|
Hydref 2007
|
250413.0
|
205707.0
|
Tachwedd 2007
|
249834.0
|
206498.0
|
Rhagfyr 2007
|
251681.0
|
206133.0
|
Ionawr 2008
|
250569.0
|
204373.0
|
Chwefror 2008
|
253434.0
|
201988.0
|
Mawrth 2008
|
247997.0
|
199858.0
|
Ebrill 2008
|
246340.0
|
198642.0
|
Mai 2008
|
247516.0
|
200624.0
|
Mehefin 2008
|
242751.0
|
197691.0
|
Gorffennaf 2008
|
241054.0
|
197177.0
|
Awst 2008
|
227550.0
|
190731.0
|
Medi 2008
|
224987.0
|
185663.0
|
Hydref 2008
|
218660.0
|
181087.0
|
Tachwedd 2008
|
213468.0
|
175857.0
|
Rhagfyr 2008
|
208090.0
|
174614.0
|
Ionawr 2009
|
212939.0
|
172591.0
|
Chwefror 2009
|
208012.0
|
168766.0
|
Mawrth 2009
|
204861.0
|
165374.0
|
Ebrill 2009
|
206564.0
|
168140.0
|
Mai 2009
|
208847.0
|
171219.0
|
Mehefin 2009
|
206299.0
|
171353.0
|
Gorffennaf 2009
|
211482.0
|
175965.0
|
Awst 2009
|
210989.0
|
178374.0
|
Medi 2009
|
216196.0
|
180204.0
|
Hydref 2009
|
213899.0
|
180707.0
|
Tachwedd 2009
|
214483.0
|
182405.0
|
Rhagfyr 2009
|
215825.0
|
183214.0
|
Ionawr 2010
|
210747.0
|
186565.0
|
Chwefror 2010
|
219426.0
|
185907.0
|
Mawrth 2010
|
220147.0
|
186006.0
|
Ebrill 2010
|
218986.0
|
189345.0
|
Mai 2010
|
220483.0
|
190144.0
|
Mehefin 2010
|
220207.0
|
189720.0
|
Gorffennaf 2010
|
219796.0
|
193324.0
|
Awst 2010
|
222453.0
|
192273.0
|
Medi 2010
|
226349.0
|
192968.0
|
Hydref 2010
|
224497.0
|
189725.0
|
Tachwedd 2010
|
221707.0
|
189241.0
|
Rhagfyr 2010
|
225667.0
|
187935.0
|
Ionawr 2011
|
223548.0
|
187053.0
|
Chwefror 2011
|
220905.0
|
184929.0
|
Mawrth 2011
|
227037.0
|
185748.0
|
Ebrill 2011
|
225754.0
|
186821.0
|
Mai 2011
|
226838.0
|
187025.0
|
Mehefin 2011
|
222652.0
|
186787.0
|
Gorffennaf 2011
|
228797.0
|
189159.0
|
Awst 2011
|
225300.0
|
190398.0
|
Medi 2011
|
223681.0
|
188559.0
|
Hydref 2011
|
225603.0
|
188315.0
|
Tachwedd 2011
|
228439.0
|
188999.0
|
Rhagfyr 2011
|
225473.0
|
188377.0
|
Ionawr 2012
|
224854.0
|
189646.0
|
Chwefror 2012
|
224629.0
|
187918.0
|
Mawrth 2012
|
225556.0
|
186485.0
|
Ebrill 2012
|
227992.0
|
190391.0
|
Mai 2012
|
228797.0
|
191244.0
|
Mehefin 2012
|
226940.0
|
191230.0
|
Gorffennaf 2012
|
226065.0
|
194240.0
|
Awst 2012
|
226688.0
|
194220.0
|
Medi 2012
|
227572.0
|
192841.0
|
Hydref 2012
|
233356.0
|
193052.0
|
Tachwedd 2012
|
233120.0
|
192280.0
|
Rhagfyr 2012
|
232995.0
|
191250.0
|
Ionawr 2013
|
227319.0
|
191957.0
|
Chwefror 2013
|
226009.0
|
190112.0
|
Mawrth 2013
|
235310.0
|
193429.0
|
Ebrill 2013
|
235586.0
|
193900.0
|
Mai 2013
|
232933.0
|
193315.0
|
Mehefin 2013
|
233668.0
|
195644.0
|
Gorffennaf 2013
|
235928.0
|
198914.0
|
Awst 2013
|
237214.0
|
199796.0
|
Medi 2013
|
239893.0
|
199359.0
|
Hydref 2013
|
242781.0
|
200942.0
|
Tachwedd 2013
|
241957.0
|
199825.0
|
Rhagfyr 2013
|
250596.0
|
204116.0
|
Ionawr 2014
|
244741.0
|
203039.0
|
Chwefror 2014
|
249860.0
|
204308.0
|
Mawrth 2014
|
250473.0
|
205308.0
|
Ebrill 2014
|
255765.0
|
209444.0
|
Mai 2014
|
262901.0
|
212816.0
|
Mehefin 2014
|
261547.0
|
214916.0
|
Gorffennaf 2014
|
263297.0
|
218893.0
|
Awst 2014
|
264077.0
|
221385.0
|
Medi 2014
|
266237.0
|
223460.0
|
Hydref 2014
|
269348.0
|
224347.0
|
Tachwedd 2014
|
265294.0
|
223661.0
|
Rhagfyr 2014
|
271819.0
|
223997.0
|
Ionawr 2015
|
276602.0
|
224790.0
|
Chwefror 2015
|
278790.0
|
225826.0
|
Mawrth 2015
|
279494.0
|
225901.0
|
Ebrill 2015
|
279424.0
|
228474.0
|
Mai 2015
|
281372.0
|
231688.0
|
Mehefin 2015
|
277011.0
|
233142.0
|
Gorffennaf 2015
|
288321.0
|
238433.0
|
Awst 2015
|
288484.0
|
241330.0
|
Medi 2015
|
292199.0
|
243997.0
|
Hydref 2015
|
294556.0
|
245102.0
|
Tachwedd 2015
|
299179.0
|
248348.0
|
Rhagfyr 2015
|
307330.0
|
248997.0
|
Ionawr 2016
|
306008.0
|
251551.0
|
Chwefror 2016
|
300547.0
|
252143.0
|
Mawrth 2016
|
300813.0
|
256644.0
|
Ebrill 2016
|
320203.0
|
255413.0
|
Mai 2016
|
332168.0
|
259585.0
|
Mehefin 2016
|
323642.0
|
263270.0
|
Gorffennaf 2016
|
327423.0
|
266581.0
|
Awst 2016
|
324830.0
|
267254.0
|
Medi 2016
|
329630.0
|
269010.0
|
Hydref 2016
|
334344.0
|
268164.0
|
Tachwedd 2016
|
334741.0
|
268982.0
|
Rhagfyr 2016
|
337792.0
|
271509.0
|
Ionawr 2017
|
343008.0
|
270225.0
|
Chwefror 2017
|
342490.0
|
272580.0
|
Mawrth 2017
|
341813.0
|
270687.0
|
Ebrill 2017
|
343077.0
|
274868.0
|
Mai 2017
|
346625.0
|
277363.0
|
Mehefin 2017
|
344417.0
|
278861.0
|
Gorffennaf 2017
|
353111.0
|
282982.0
|
Awst 2017
|
348575.0
|
282993.0
|
Medi 2017
|
350499.0
|
283740.0
|
Hydref 2017
|
354413.0
|
283680.0
|
Tachwedd 2017
|
347213.0
|
282653.0
|
Rhagfyr 2017
|
351336.0
|
284409.0
|
Ionawr 2018
|
360742.0
|
283859.0
|
Chwefror 2018
|
370722.0
|
282211.0
|
Mawrth 2018
|
355921.0
|
281621.0
|
Ebrill 2018
|
360153.0
|
282495.0
|
Mai 2018
|
353483.0
|
283751.0
|
Mehefin 2018
|
355191.0
|
284961.0
|
Gorffennaf 2018
|
362155.0
|
289217.0
|
Awst 2018
|
364902.0
|
289065.0
|
Medi 2018
|
358182.0
|
288096.0
|
Hydref 2018
|
367789.0
|
287705.0
|
Tachwedd 2018
|
354829.0
|
289362.0
|
Rhagfyr 2018
|
359106.0
|
286131.0
|
Ionawr 2019
|
358541.0
|
283750.0
|
Chwefror 2019
|
371380.0
|
283822.0
|
Mawrth 2019
|
359985.0
|
281565.0
|
Ebrill 2019
|
361903.0
|
282686.0
|
Mai 2019
|
357831.0
|
283877.0
|
Mehefin 2019
|
351630.0
|
284075.0
|
Gorffennaf 2019
|
368411.0
|
285786.0
|
Awst 2019
|
358799.0
|
285777.0
|
Medi 2019
|
363311.0
|
286769.0
|
Hydref 2019
|
363313.0
|
285765.0
|
Tachwedd 2019
|
346170.0
|
285214.0
|
Rhagfyr 2019
|
348879.0
|
286814.0
|
Ionawr 2020
|
369198.0
|
282977.0
|
Dyddiad
|
Adeilad newydd
|
Eiddo presennol
|
Ebrill 1992
|
|
|
Mai 1992
|
|
|
Mehefin 1992
|
|
|
Gorffennaf 1992
|
|
|
Awst 1992
|
|
|
Medi 1992
|
|
|
Hydref 1992
|
|
|
Tachwedd 1992
|
|
|
Rhagfyr 1992
|
|
|
Ionawr 1993
|
|
|
Chwefror 1993
|
|
|
Mawrth 1993
|
|
|
Ebrill 1993
|
|
|
Mai 1993
|
|
|
Mehefin 1993
|
|
|
Gorffennaf 1993
|
|
|
Awst 1993
|
|
|
Medi 1993
|
|
|
Hydref 1993
|
|
|
Tachwedd 1993
|
|
|
Rhagfyr 1993
|
|
|
Ionawr 1994
|
|
|
Chwefror 1994
|
|
|
Mawrth 1994
|
|
|
Ebrill 1994
|
|
|
Mai 1994
|
|
|
Mehefin 1994
|
|
|
Gorffennaf 1994
|
|
|
Awst 1994
|
|
|
Medi 1994
|
|
|
Hydref 1994
|
|
|
Tachwedd 1994
|
|
|
Rhagfyr 1994
|
|
|
Ionawr 1995
|
|
|
Chwefror 1995
|
|
|
Mawrth 1995
|
|
|
Ebrill 1995
|
|
|
Mai 1995
|
|
|
Mehefin 1995
|
|
|
Gorffennaf 1995
|
|
|
Awst 1995
|
|
|
Medi 1995
|
|
|
Hydref 1995
|
|
|
Tachwedd 1995
|
|
|
Rhagfyr 1995
|
|
|
Ionawr 1996
|
0.0
|
-3.5
|
Chwefror 1996
|
0.8
|
-2.8
|
Mawrth 1996
|
-0.2
|
-2.3
|
Ebrill 1996
|
1.5
|
-1.9
|
Mai 1996
|
-0.2
|
-0.8
|
Mehefin 1996
|
2.5
|
0.2
|
Gorffennaf 1996
|
1.4
|
-0.6
|
Awst 1996
|
3.4
|
1.9
|
Medi 1996
|
4.5
|
2.0
|
Hydref 1996
|
4.8
|
4.3
|
Tachwedd 1996
|
4.4
|
4.5
|
Rhagfyr 1996
|
4.9
|
6.4
|
Ionawr 1997
|
4.6
|
7.8
|
Chwefror 1997
|
5.4
|
8.3
|
Mawrth 1997
|
6.7
|
9.0
|
Ebrill 1997
|
5.9
|
8.5
|
Mai 1997
|
9.1
|
10.1
|
Mehefin 1997
|
7.4
|
11.4
|
Gorffennaf 1997
|
9.2
|
12.9
|
Awst 1997
|
8.3
|
12.1
|
Medi 1997
|
11.4
|
13.0
|
Hydref 1997
|
11.4
|
15.1
|
Tachwedd 1997
|
10.2
|
12.4
|
Rhagfyr 1997
|
11.8
|
12.4
|
Ionawr 1998
|
13.9
|
13.1
|
Chwefror 1998
|
12.8
|
11.7
|
Mawrth 1998
|
12.4
|
11.8
|
Ebrill 1998
|
14.6
|
13.5
|
Mai 1998
|
12.7
|
12.9
|
Mehefin 1998
|
13.2
|
11.4
|
Gorffennaf 1998
|
12.2
|
10.3
|
Awst 1998
|
12.5
|
9.6
|
Medi 1998
|
9.6
|
10.3
|
Hydref 1998
|
10.2
|
8.0
|
Tachwedd 1998
|
10.3
|
8.4
|
Rhagfyr 1998
|
9.0
|
7.5
|
Ionawr 1999
|
8.6
|
7.4
|
Chwefror 1999
|
7.3
|
8.0
|
Mawrth 1999
|
7.3
|
7.4
|
Ebrill 1999
|
5.9
|
7.4
|
Mai 1999
|
8.7
|
6.3
|
Mehefin 1999
|
8.7
|
8.1
|
Gorffennaf 1999
|
9.4
|
8.6
|
Awst 1999
|
9.3
|
10.0
|
Medi 1999
|
11.9
|
11.4
|
Hydref 1999
|
11.8
|
12.4
|
Tachwedd 1999
|
13.8
|
15.6
|
Rhagfyr 1999
|
17.4
|
17.6
|
Ionawr 2000
|
15.1
|
17.2
|
Chwefror 2000
|
16.4
|
16.6
|
Mawrth 2000
|
18.5
|
19.5
|
Ebrill 2000
|
21.6
|
21.3
|
Mai 2000
|
21.2
|
22.9
|
Mehefin 2000
|
18.9
|
21.0
|
Gorffennaf 2000
|
21.1
|
21.6
|
Awst 2000
|
22.8
|
21.5
|
Medi 2000
|
20.7
|
19.5
|
Hydref 2000
|
18.0
|
17.4
|
Tachwedd 2000
|
18.4
|
15.4
|
Rhagfyr 2000
|
15.5
|
14.7
|
Ionawr 2001
|
18.0
|
14.4
|
Chwefror 2001
|
18.7
|
14.7
|
Mawrth 2001
|
16.7
|
13.8
|
Ebrill 2001
|
15.2
|
11.4
|
Mai 2001
|
12.0
|
11.6
|
Mehefin 2001
|
16.2
|
12.0
|
Gorffennaf 2001
|
13.6
|
12.0
|
Awst 2001
|
15.4
|
13.5
|
Medi 2001
|
17.7
|
13.1
|
Hydref 2001
|
19.6
|
15.2
|
Tachwedd 2001
|
17.6
|
16.1
|
Rhagfyr 2001
|
19.0
|
15.8
|
Ionawr 2002
|
17.9
|
16.1
|
Chwefror 2002
|
19.4
|
17.1
|
Mawrth 2002
|
19.4
|
18.0
|
Ebrill 2002
|
21.6
|
20.3
|
Mai 2002
|
23.7
|
20.7
|
Mehefin 2002
|
22.0
|
21.4
|
Gorffennaf 2002
|
23.5
|
23.0
|
Awst 2002
|
22.3
|
23.0
|
Medi 2002
|
19.4
|
24.0
|
Hydref 2002
|
22.1
|
25.9
|
Tachwedd 2002
|
23.8
|
27.5
|
Rhagfyr 2002
|
22.2
|
27.5
|
Ionawr 2003
|
22.1
|
29.6
|
Chwefror 2003
|
21.0
|
28.4
|
Mawrth 2003
|
22.7
|
26.4
|
Ebrill 2003
|
19.7
|
24.6
|
Mai 2003
|
18.0
|
22.0
|
Mehefin 2003
|
17.4
|
19.7
|
Gorffennaf 2003
|
17.2
|
18.8
|
Awst 2003
|
13.4
|
16.3
|
Medi 2003
|
13.3
|
15.0
|
Hydref 2003
|
11.5
|
13.5
|
Tachwedd 2003
|
10.1
|
11.1
|
Rhagfyr 2003
|
9.9
|
11.3
|
Ionawr 2004
|
11.6
|
10.1
|
Chwefror 2004
|
11.4
|
10.5
|
Mawrth 2004
|
10.2
|
10.8
|
Ebrill 2004
|
8.0
|
11.1
|
Mai 2004
|
10.8
|
11.3
|
Mehefin 2004
|
12.8
|
13.9
|
Gorffennaf 2004
|
8.0
|
12.6
|
Awst 2004
|
10.6
|
13.5
|
Medi 2004
|
12.7
|
14.0
|
Hydref 2004
|
12.1
|
13.2
|
Tachwedd 2004
|
12.9
|
12.7
|
Rhagfyr 2004
|
12.2
|
10.8
|
Ionawr 2005
|
11.7
|
9.6
|
Chwefror 2005
|
10.2
|
8.1
|
Mawrth 2005
|
9.8
|
7.2
|
Ebrill 2005
|
11.6
|
4.8
|
Mai 2005
|
9.9
|
5.9
|
Mehefin 2005
|
6.9
|
4.5
|
Gorffennaf 2005
|
9.8
|
3.4
|
Awst 2005
|
7.8
|
1.9
|
Medi 2005
|
6.4
|
1.8
|
Hydref 2005
|
5.9
|
1.0
|
Tachwedd 2005
|
4.7
|
0.8
|
Rhagfyr 2005
|
6.1
|
2.2
|
Ionawr 2006
|
2.9
|
2.0
|
Chwefror 2006
|
4.6
|
3.1
|
Mawrth 2006
|
4.8
|
3.9
|
Ebrill 2006
|
4.8
|
5.3
|
Mai 2006
|
4.8
|
4.4
|
Mehefin 2006
|
3.9
|
4.1
|
Gorffennaf 2006
|
4.7
|
5.5
|
Awst 2006
|
4.3
|
6.8
|
Medi 2006
|
5.1
|
6.5
|
Hydref 2006
|
5.9
|
7.9
|
Tachwedd 2006
|
5.0
|
8.6
|
Rhagfyr 2006
|
5.9
|
8.9
|
Ionawr 2007
|
7.0
|
9.2
|
Chwefror 2007
|
5.5
|
9.5
|
Mawrth 2007
|
5.1
|
9.5
|
Ebrill 2007
|
5.2
|
9.1
|
Mai 2007
|
7.5
|
9.0
|
Mehefin 2007
|
8.0
|
10.8
|
Gorffennaf 2007
|
8.7
|
9.5
|
Awst 2007
|
6.8
|
9.4
|
Medi 2007
|
7.3
|
9.8
|
Hydref 2007
|
7.2
|
8.9
|
Tachwedd 2007
|
7.8
|
8.8
|
Rhagfyr 2007
|
6.0
|
7.6
|
Ionawr 2008
|
5.7
|
6.6
|
Chwefror 2008
|
6.7
|
5.1
|
Mawrth 2008
|
4.7
|
3.0
|
Ebrill 2008
|
3.0
|
1.2
|
Mai 2008
|
0.3
|
1.4
|
Mehefin 2008
|
-1.4
|
-2.0
|
Gorffennaf 2008
|
-3.7
|
-3.1
|
Awst 2008
|
-7.2
|
-7.1
|
Medi 2008
|
-9.4
|
-9.9
|
Hydref 2008
|
-12.7
|
-12.0
|
Tachwedd 2008
|
-14.6
|
-14.8
|
Rhagfyr 2008
|
-17.3
|
-15.3
|
Ionawr 2009
|
-15.0
|
-15.6
|
Chwefror 2009
|
-17.9
|
-16.4
|
Mawrth 2009
|
-17.4
|
-17.2
|
Ebrill 2009
|
-16.2
|
-15.4
|
Mai 2009
|
-15.6
|
-14.7
|
Mehefin 2009
|
-15.0
|
-13.3
|
Gorffennaf 2009
|
-12.3
|
-10.8
|
Awst 2009
|
-7.3
|
-6.5
|
Medi 2009
|
-3.9
|
-2.9
|
Hydref 2009
|
-2.2
|
-0.2
|
Tachwedd 2009
|
0.5
|
3.7
|
Rhagfyr 2009
|
3.7
|
4.9
|
Ionawr 2010
|
-1.0
|
8.1
|
Chwefror 2010
|
5.5
|
10.2
|
Mawrth 2010
|
7.5
|
12.5
|
Ebrill 2010
|
6.0
|
12.6
|
Mai 2010
|
5.6
|
11.0
|
Mehefin 2010
|
6.7
|
10.7
|
Gorffennaf 2010
|
3.9
|
9.9
|
Awst 2010
|
5.4
|
7.8
|
Medi 2010
|
4.7
|
7.1
|
Hydref 2010
|
5.0
|
5.0
|
Tachwedd 2010
|
3.4
|
3.8
|
Rhagfyr 2010
|
4.6
|
2.6
|
Ionawr 2011
|
6.1
|
0.3
|
Chwefror 2011
|
0.7
|
-0.5
|
Mawrth 2011
|
3.1
|
-0.1
|
Ebrill 2011
|
3.1
|
-1.3
|
Mai 2011
|
2.9
|
-1.6
|
Mehefin 2011
|
1.1
|
-1.6
|
Gorffennaf 2011
|
4.1
|
-2.2
|
Awst 2011
|
1.3
|
-1.0
|
Medi 2011
|
-1.2
|
-2.3
|
Hydref 2011
|
0.5
|
-0.7
|
Tachwedd 2011
|
3.0
|
-0.1
|
Rhagfyr 2011
|
-0.1
|
0.2
|
Ionawr 2012
|
0.6
|
1.4
|
Chwefror 2012
|
1.7
|
1.6
|
Mawrth 2012
|
-0.6
|
0.4
|
Ebrill 2012
|
1.0
|
1.9
|
Mai 2012
|
0.9
|
2.3
|
Mehefin 2012
|
1.9
|
2.4
|
Gorffennaf 2012
|
-1.2
|
2.7
|
Awst 2012
|
0.6
|
2.0
|
Medi 2012
|
1.7
|
2.3
|
Hydref 2012
|
3.4
|
2.5
|
Tachwedd 2012
|
2.0
|
1.7
|
Rhagfyr 2012
|
3.3
|
1.5
|
Ionawr 2013
|
1.1
|
1.2
|
Chwefror 2013
|
0.6
|
1.2
|
Mawrth 2013
|
4.3
|
3.7
|
Ebrill 2013
|
3.3
|
1.8
|
Mai 2013
|
1.8
|
1.1
|
Mehefin 2013
|
3.0
|
2.3
|
Gorffennaf 2013
|
4.4
|
2.4
|
Awst 2013
|
4.6
|
2.9
|
Medi 2013
|
5.4
|
3.4
|
Hydref 2013
|
4.0
|
4.1
|
Tachwedd 2013
|
3.8
|
3.9
|
Rhagfyr 2013
|
7.6
|
6.7
|
Ionawr 2014
|
7.7
|
5.8
|
Chwefror 2014
|
10.6
|
7.5
|
Mawrth 2014
|
6.4
|
6.1
|
Ebrill 2014
|
8.6
|
8.0
|
Mai 2014
|
12.9
|
10.1
|
Mehefin 2014
|
11.9
|
9.8
|
Gorffennaf 2014
|
11.6
|
10.0
|
Awst 2014
|
11.3
|
10.8
|
Medi 2014
|
11.0
|
12.1
|
Hydref 2014
|
10.9
|
11.6
|
Tachwedd 2014
|
9.6
|
11.9
|
Rhagfyr 2014
|
8.5
|
9.7
|
Ionawr 2015
|
13.0
|
10.7
|
Chwefror 2015
|
11.6
|
10.5
|
Mawrth 2015
|
11.6
|
10.0
|
Ebrill 2015
|
9.2
|
9.1
|
Mai 2015
|
7.0
|
8.9
|
Mehefin 2015
|
5.9
|
8.5
|
Gorffennaf 2015
|
9.5
|
8.9
|
Awst 2015
|
9.2
|
9.0
|
Medi 2015
|
9.8
|
9.2
|
Hydref 2015
|
9.4
|
9.2
|
Tachwedd 2015
|
12.8
|
11.0
|
Rhagfyr 2015
|
13.1
|
11.2
|
Ionawr 2016
|
10.6
|
11.9
|
Chwefror 2016
|
7.8
|
11.6
|
Mawrth 2016
|
7.6
|
13.6
|
Ebrill 2016
|
14.6
|
11.8
|
Mai 2016
|
18.0
|
12.0
|
Mehefin 2016
|
16.8
|
12.9
|
Gorffennaf 2016
|
13.6
|
11.8
|
Awst 2016
|
12.6
|
10.7
|
Medi 2016
|
12.8
|
10.2
|
Hydref 2016
|
13.5
|
9.4
|
Tachwedd 2016
|
11.9
|
8.3
|
Rhagfyr 2016
|
9.9
|
9.0
|
Ionawr 2017
|
12.1
|
7.4
|
Chwefror 2017
|
14.0
|
8.1
|
Mawrth 2017
|
13.6
|
5.5
|
Ebrill 2017
|
7.1
|
7.6
|
Mai 2017
|
4.4
|
6.8
|
Mehefin 2017
|
6.4
|
5.9
|
Gorffennaf 2017
|
7.8
|
6.2
|
Awst 2017
|
7.3
|
5.9
|
Medi 2017
|
6.3
|
5.5
|
Hydref 2017
|
6.0
|
5.8
|
Tachwedd 2017
|
3.7
|
5.1
|
Rhagfyr 2017
|
4.0
|
4.8
|
Ionawr 2018
|
5.2
|
5.0
|
Chwefror 2018
|
8.2
|
3.5
|
Mawrth 2018
|
4.1
|
4.0
|
Ebrill 2018
|
5.0
|
2.8
|
Mai 2018
|
2.0
|
2.3
|
Mehefin 2018
|
3.1
|
2.2
|
Gorffennaf 2018
|
2.6
|
2.2
|
Awst 2018
|
4.7
|
2.2
|
Medi 2018
|
2.2
|
1.5
|
Hydref 2018
|
3.8
|
1.4
|
Tachwedd 2018
|
2.2
|
2.4
|
Rhagfyr 2018
|
2.2
|
0.6
|
Ionawr 2019
|
-0.6
|
-0.0
|
Chwefror 2019
|
0.2
|
0.6
|
Mawrth 2019
|
1.1
|
-0.0
|
Ebrill 2019
|
0.5
|
0.1
|
Mai 2019
|
1.2
|
0.0
|
Mehefin 2019
|
-1.0
|
-0.3
|
Gorffennaf 2019
|
1.7
|
-1.2
|
Awst 2019
|
-1.7
|
-1.1
|
Medi 2019
|
1.4
|
-0.5
|
Hydref 2019
|
-1.2
|
-0.7
|
Tachwedd 2019
|
-2.4
|
-1.4
|
Rhagfyr 2019
|
-2.8
|
0.2
|
Ionawr 2020
|
3.0
|
-0.3
|
Dyddiad
|
Adeilad newydd
|
Eiddo presennol
|
Ebrill 1992
|
|
|
Mai 1992
|
|
|
Mehefin 1992
|
|
|
Gorffennaf 1992
|
|
|
Awst 1992
|
|
|
Medi 1992
|
|
|
Hydref 1992
|
|
|
Tachwedd 1992
|
|
|
Rhagfyr 1992
|
|
|
Ionawr 1993
|
|
|
Chwefror 1993
|
|
|
Mawrth 1993
|
|
|
Ebrill 1993
|
|
|
Mai 1993
|
|
|
Mehefin 1993
|
|
|
Gorffennaf 1993
|
|
|
Awst 1993
|
|
|
Medi 1993
|
|
|
Hydref 1993
|
|
|
Tachwedd 1993
|
|
|
Rhagfyr 1993
|
|
|
Ionawr 1994
|
|
|
Chwefror 1994
|
|
|
Mawrth 1994
|
|
|
Ebrill 1994
|
|
|
Mai 1994
|
|
|
Mehefin 1994
|
|
|
Gorffennaf 1994
|
|
|
Awst 1994
|
|
|
Medi 1994
|
|
|
Hydref 1994
|
|
|
Tachwedd 1994
|
|
|
Rhagfyr 1994
|
|
|
Ionawr 1995
|
|
|
Chwefror 1995
|
-0.0
|
-0.2
|
Mawrth 1995
|
-0.2
|
-0.8
|
Ebrill 1995
|
-0.8
|
1.0
|
Mai 1995
|
0.6
|
-0.3
|
Mehefin 1995
|
0.0
|
-0.4
|
Gorffennaf 1995
|
1.0
|
1.8
|
Awst 1995
|
-0.6
|
-0.9
|
Medi 1995
|
-2.0
|
-0.6
|
Hydref 1995
|
0.5
|
-2.2
|
Tachwedd 1995
|
1.2
|
1.2
|
Rhagfyr 1995
|
0.0
|
-0.8
|
Ionawr 1996
|
0.5
|
-1.1
|
Chwefror 1996
|
0.8
|
0.5
|
Mawrth 1996
|
-1.2
|
-0.3
|
Ebrill 1996
|
0.8
|
1.5
|
Mai 1996
|
-1.1
|
0.8
|
Mehefin 1996
|
2.7
|
0.5
|
Gorffennaf 1996
|
-0.1
|
1.0
|
Awst 1996
|
1.4
|
1.6
|
Medi 1996
|
-1.0
|
-0.5
|
Hydref 1996
|
0.8
|
-0.0
|
Tachwedd 1996
|
0.8
|
1.4
|
Rhagfyr 1996
|
0.5
|
1.0
|
Ionawr 1997
|
0.1
|
0.2
|
Chwefror 1997
|
1.6
|
0.9
|
Mawrth 1997
|
0.0
|
0.4
|
Ebrill 1997
|
0.0
|
0.9
|
Mai 1997
|
1.9
|
2.3
|
Mehefin 1997
|
1.1
|
1.8
|
Gorffennaf 1997
|
1.6
|
2.3
|
Awst 1997
|
0.6
|
0.8
|
Medi 1997
|
1.8
|
0.3
|
Hydref 1997
|
0.8
|
1.8
|
Tachwedd 1997
|
-0.2
|
-0.9
|
Rhagfyr 1997
|
2.0
|
0.9
|
Ionawr 1998
|
1.9
|
0.9
|
Chwefror 1998
|
0.7
|
-0.4
|
Mawrth 1998
|
-0.3
|
0.5
|
Ebrill 1998
|
2.0
|
2.4
|
Mai 1998
|
0.2
|
1.8
|
Mehefin 1998
|
1.5
|
0.4
|
Gorffennaf 1998
|
0.7
|
1.4
|
Awst 1998
|
0.9
|
0.2
|
Medi 1998
|
-0.8
|
1.0
|
Hydref 1998
|
1.3
|
-0.4
|
Tachwedd 1998
|
-0.2
|
-0.6
|
Rhagfyr 1998
|
0.7
|
0.0
|
Ionawr 1999
|
1.6
|
0.9
|
Chwefror 1999
|
-0.6
|
0.2
|
Mawrth 1999
|
-0.3
|
-0.1
|
Ebrill 1999
|
0.7
|
2.4
|
Mai 1999
|
2.8
|
0.8
|
Mehefin 1999
|
1.5
|
2.1
|
Gorffennaf 1999
|
1.3
|
1.8
|
Awst 1999
|
0.8
|
1.4
|
Medi 1999
|
1.6
|
2.3
|
Hydref 1999
|
1.2
|
0.5
|
Tachwedd 1999
|
1.6
|
2.3
|
Rhagfyr 1999
|
3.9
|
1.8
|
Ionawr 2000
|
-0.4
|
0.5
|
Chwefror 2000
|
0.6
|
-0.3
|
Mawrth 2000
|
1.6
|
2.4
|
Ebrill 2000
|
3.3
|
3.9
|
Mai 2000
|
2.4
|
2.2
|
Mehefin 2000
|
-0.4
|
0.6
|
Gorffennaf 2000
|
3.2
|
2.3
|
Awst 2000
|
2.2
|
1.3
|
Medi 2000
|
-0.1
|
0.6
|
Hydref 2000
|
-1.1
|
-1.2
|
Tachwedd 2000
|
2.0
|
0.5
|
Rhagfyr 2000
|
1.3
|
1.1
|
Ionawr 2001
|
1.8
|
0.3
|
Chwefror 2001
|
1.2
|
-0.1
|
Mawrth 2001
|
-0.1
|
1.6
|
Ebrill 2001
|
1.9
|
1.7
|
Mai 2001
|
-0.4
|
2.3
|
Mehefin 2001
|
3.3
|
1.0
|
Gorffennaf 2001
|
0.9
|
2.3
|
Awst 2001
|
3.9
|
2.7
|
Medi 2001
|
1.9
|
0.3
|
Hydref 2001
|
0.6
|
0.6
|
Tachwedd 2001
|
0.3
|
1.3
|
Rhagfyr 2001
|
2.4
|
0.8
|
Ionawr 2002
|
0.8
|
0.6
|
Chwefror 2002
|
2.5
|
0.7
|
Mawrth 2002
|
-0.2
|
2.4
|
Ebrill 2002
|
3.9
|
3.7
|
Mai 2002
|
1.3
|
2.6
|
Mehefin 2002
|
1.8
|
1.6
|
Gorffennaf 2002
|
2.1
|
3.6
|
Awst 2002
|
2.9
|
2.7
|
Medi 2002
|
-0.5
|
1.0
|
Hydref 2002
|
2.8
|
2.2
|
Tachwedd 2002
|
1.7
|
2.7
|
Rhagfyr 2002
|
1.1
|
0.8
|
Ionawr 2003
|
0.8
|
2.3
|
Chwefror 2003
|
1.6
|
-0.2
|
Mawrth 2003
|
1.3
|
0.7
|
Ebrill 2003
|
1.3
|
2.2
|
Mai 2003
|
-0.1
|
0.5
|
Mehefin 2003
|
1.3
|
-0.3
|
Gorffennaf 2003
|
1.9
|
2.8
|
Awst 2003
|
-0.4
|
0.5
|
Medi 2003
|
-0.6
|
-0.1
|
Hydref 2003
|
1.2
|
0.9
|
Tachwedd 2003
|
0.4
|
0.5
|
Rhagfyr 2003
|
0.9
|
1.0
|
Ionawr 2004
|
2.3
|
1.2
|
Chwefror 2004
|
1.4
|
0.2
|
Mawrth 2004
|
0.2
|
1.0
|
Ebrill 2004
|
-0.8
|
2.5
|
Mai 2004
|
2.5
|
0.6
|
Mehefin 2004
|
3.1
|
2.0
|
Gorffennaf 2004
|
-2.4
|
1.7
|
Awst 2004
|
2.0
|
1.3
|
Medi 2004
|
1.3
|
0.4
|
Hydref 2004
|
0.6
|
0.1
|
Tachwedd 2004
|
1.2
|
0.0
|
Rhagfyr 2004
|
0.2
|
-0.7
|
Ionawr 2005
|
1.8
|
0.0
|
Chwefror 2005
|
0.0
|
-1.2
|
Mawrth 2005
|
-0.2
|
0.2
|
Ebrill 2005
|
0.9
|
0.2
|
Mai 2005
|
0.9
|
1.7
|
Mehefin 2005
|
0.2
|
0.6
|
Gorffennaf 2005
|
0.3
|
0.7
|
Awst 2005
|
0.1
|
-0.2
|
Medi 2005
|
0.0
|
0.2
|
Hydref 2005
|
0.2
|
-0.6
|
Tachwedd 2005
|
0.1
|
-0.1
|
Rhagfyr 2005
|
1.5
|
0.6
|
Ionawr 2006
|
-1.2
|
-0.2
|
Chwefror 2006
|
1.7
|
-0.1
|
Mawrth 2006
|
0.0
|
0.9
|
Ebrill 2006
|
1.0
|
1.6
|
Mai 2006
|
0.8
|
0.9
|
Mehefin 2006
|
-0.6
|
0.2
|
Gorffennaf 2006
|
1.0
|
2.1
|
Awst 2006
|
-0.3
|
1.0
|
Medi 2006
|
0.8
|
-0.1
|
Hydref 2006
|
0.9
|
0.6
|
Tachwedd 2006
|
-0.8
|
0.5
|
Rhagfyr 2006
|
2.4
|
1.0
|
Ionawr 2007
|
-0.1
|
0.1
|
Chwefror 2007
|
0.2
|
0.2
|
Mawrth 2007
|
-0.3
|
0.9
|
Ebrill 2007
|
1.0
|
1.3
|
Mai 2007
|
3.1
|
0.8
|
Mehefin 2007
|
-0.2
|
1.9
|
Gorffennaf 2007
|
1.6
|
0.9
|
Awst 2007
|
-2.0
|
0.9
|
Medi 2007
|
1.3
|
0.3
|
Hydref 2007
|
0.8
|
-0.2
|
Tachwedd 2007
|
-0.2
|
0.4
|
Rhagfyr 2007
|
0.7
|
-0.2
|
Ionawr 2008
|
-0.4
|
-0.8
|
Chwefror 2008
|
1.1
|
-1.2
|
Mawrth 2008
|
-2.2
|
-1.0
|
Ebrill 2008
|
-0.7
|
-0.6
|
Mai 2008
|
0.5
|
1.0
|
Mehefin 2008
|
-1.9
|
-1.5
|
Gorffennaf 2008
|
-0.7
|
-0.3
|
Awst 2008
|
-5.6
|
-3.3
|
Medi 2008
|
-1.1
|
-2.7
|
Hydref 2008
|
-2.8
|
-2.5
|
Tachwedd 2008
|
-2.4
|
-2.9
|
Rhagfyr 2008
|
-2.5
|
-0.7
|
Ionawr 2009
|
2.3
|
-1.2
|
Chwefror 2009
|
-2.3
|
-2.2
|
Mawrth 2009
|
-1.5
|
-2.0
|
Ebrill 2009
|
0.8
|
1.7
|
Mai 2009
|
1.1
|
1.8
|
Mehefin 2009
|
-1.2
|
0.1
|
Gorffennaf 2009
|
2.5
|
2.7
|
Awst 2009
|
-0.2
|
1.4
|
Medi 2009
|
2.5
|
1.0
|
Hydref 2009
|
-1.1
|
0.3
|
Tachwedd 2009
|
0.3
|
0.9
|
Rhagfyr 2009
|
0.6
|
0.4
|
Ionawr 2010
|
-2.4
|
1.8
|
Chwefror 2010
|
4.1
|
-0.4
|
Mawrth 2010
|
0.3
|
0.1
|
Ebrill 2010
|
-0.5
|
1.8
|
Mai 2010
|
0.7
|
0.4
|
Mehefin 2010
|
-0.1
|
-0.2
|
Gorffennaf 2010
|
-0.2
|
1.9
|
Awst 2010
|
1.2
|
-0.5
|
Medi 2010
|
1.8
|
0.4
|
Hydref 2010
|
-0.8
|
-1.7
|
Tachwedd 2010
|
-1.2
|
-0.3
|
Rhagfyr 2010
|
1.8
|
-0.7
|
Ionawr 2011
|
-0.9
|
-0.5
|
Chwefror 2011
|
-1.2
|
-1.1
|
Mawrth 2011
|
2.8
|
0.4
|
Ebrill 2011
|
-0.6
|
0.6
|
Mai 2011
|
0.5
|
0.1
|
Mehefin 2011
|
-1.8
|
-0.1
|
Gorffennaf 2011
|
2.8
|
1.3
|
Awst 2011
|
-1.5
|
0.7
|
Medi 2011
|
-0.7
|
-1.0
|
Hydref 2011
|
0.9
|
-0.1
|
Tachwedd 2011
|
1.3
|
0.4
|
Rhagfyr 2011
|
-1.3
|
-0.3
|
Ionawr 2012
|
-0.3
|
0.7
|
Chwefror 2012
|
-0.1
|
-0.9
|
Mawrth 2012
|
0.4
|
-0.8
|
Ebrill 2012
|
1.1
|
2.1
|
Mai 2012
|
0.4
|
0.4
|
Mehefin 2012
|
-0.8
|
-0.0
|
Gorffennaf 2012
|
-0.4
|
1.6
|
Awst 2012
|
0.3
|
-0.0
|
Medi 2012
|
0.4
|
-0.7
|
Hydref 2012
|
2.5
|
0.1
|
Tachwedd 2012
|
-0.1
|
-0.4
|
Rhagfyr 2012
|
-0.1
|
-0.5
|
Ionawr 2013
|
-2.4
|
0.4
|
Chwefror 2013
|
-0.6
|
-1.0
|
Mawrth 2013
|
4.1
|
1.7
|
Ebrill 2013
|
0.1
|
0.2
|
Mai 2013
|
-1.1
|
-0.3
|
Mehefin 2013
|
0.3
|
1.2
|
Gorffennaf 2013
|
1.0
|
1.7
|
Awst 2013
|
0.5
|
0.4
|
Medi 2013
|
1.1
|
-0.2
|
Hydref 2013
|
1.2
|
0.8
|
Tachwedd 2013
|
-0.3
|
-0.6
|
Rhagfyr 2013
|
3.6
|
2.2
|
Ionawr 2014
|
-2.3
|
-0.5
|
Chwefror 2014
|
2.1
|
0.6
|
Mawrth 2014
|
0.2
|
0.5
|
Ebrill 2014
|
2.1
|
2.0
|
Mai 2014
|
2.8
|
1.6
|
Mehefin 2014
|
-0.5
|
1.0
|
Gorffennaf 2014
|
0.7
|
1.8
|
Awst 2014
|
0.3
|
1.1
|
Medi 2014
|
0.8
|
0.9
|
Hydref 2014
|
1.2
|
0.4
|
Tachwedd 2014
|
-1.5
|
-0.3
|
Rhagfyr 2014
|
2.5
|
0.2
|
Ionawr 2015
|
1.8
|
0.4
|
Chwefror 2015
|
0.8
|
0.5
|
Mawrth 2015
|
0.2
|
0.0
|
Ebrill 2015
|
-0.0
|
1.1
|
Mai 2015
|
0.7
|
1.4
|
Mehefin 2015
|
-1.6
|
0.6
|
Gorffennaf 2015
|
4.1
|
2.3
|
Awst 2015
|
0.1
|
1.2
|
Medi 2015
|
1.3
|
1.1
|
Hydref 2015
|
0.8
|
0.4
|
Tachwedd 2015
|
1.6
|
1.3
|
Rhagfyr 2015
|
2.7
|
0.3
|
Ionawr 2016
|
-0.4
|
1.0
|
Chwefror 2016
|
-1.8
|
0.2
|
Mawrth 2016
|
0.1
|
1.8
|
Ebrill 2016
|
6.4
|
-0.5
|
Mai 2016
|
3.7
|
1.6
|
Mehefin 2016
|
-2.6
|
1.4
|
Gorffennaf 2016
|
1.2
|
1.3
|
Awst 2016
|
-0.8
|
0.2
|
Medi 2016
|
1.5
|
0.7
|
Hydref 2016
|
1.4
|
-0.3
|
Tachwedd 2016
|
0.1
|
0.3
|
Rhagfyr 2016
|
0.9
|
0.9
|
Ionawr 2017
|
1.5
|
-0.5
|
Chwefror 2017
|
-0.2
|
0.9
|
Mawrth 2017
|
-0.2
|
-0.7
|
Ebrill 2017
|
0.4
|
1.5
|
Mai 2017
|
1.0
|
0.9
|
Mehefin 2017
|
-0.6
|
0.5
|
Gorffennaf 2017
|
2.5
|
1.5
|
Awst 2017
|
-1.3
|
0.0
|
Medi 2017
|
0.6
|
0.3
|
Hydref 2017
|
1.1
|
-0.0
|
Tachwedd 2017
|
-2.0
|
-0.4
|
Rhagfyr 2017
|
1.2
|
0.6
|
Ionawr 2018
|
2.7
|
-0.2
|
Chwefror 2018
|
2.8
|
-0.6
|
Mawrth 2018
|
-4.0
|
-0.2
|
Ebrill 2018
|
1.2
|
0.3
|
Mai 2018
|
-1.8
|
0.4
|
Mehefin 2018
|
0.5
|
0.4
|
Gorffennaf 2018
|
2.0
|
1.5
|
Awst 2018
|
0.8
|
-0.1
|
Medi 2018
|
-1.8
|
-0.3
|
Hydref 2018
|
2.7
|
-0.1
|
Tachwedd 2018
|
-3.5
|
0.6
|
Rhagfyr 2018
|
1.2
|
-1.1
|
Ionawr 2019
|
-0.2
|
-0.8
|
Chwefror 2019
|
3.6
|
0.0
|
Mawrth 2019
|
-3.1
|
-0.8
|
Ebrill 2019
|
0.5
|
0.4
|
Mai 2019
|
-1.1
|
0.4
|
Mehefin 2019
|
-1.7
|
0.1
|
Gorffennaf 2019
|
4.8
|
0.6
|
Awst 2019
|
-2.6
|
0.0
|
Medi 2019
|
1.3
|
0.4
|
Hydref 2019
|
0.0
|
-0.4
|
Tachwedd 2019
|
-4.7
|
-0.2
|
Rhagfyr 2019
|
0.8
|
0.6
|
Ionawr 2020
|
5.8
|
-1.3
|
Dyddiad
|
Adeilad newydd
|
Eiddo presennol
|
Ebrill 1992
|
|
|
Mai 1992
|
|
|
Mehefin 1992
|
|
|
Gorffennaf 1992
|
|
|
Awst 1992
|
|
|
Medi 1992
|
|
|
Hydref 1992
|
|
|
Tachwedd 1992
|
|
|
Rhagfyr 1992
|
|
|
Ionawr 1993
|
|
|
Chwefror 1993
|
|
|
Mawrth 1993
|
|
|
Ebrill 1993
|
|
|
Mai 1993
|
|
|
Mehefin 1993
|
|
|
Gorffennaf 1993
|
|
|
Awst 1993
|
|
|
Medi 1993
|
|
|
Hydref 1993
|
|
|
Tachwedd 1993
|
|
|
Rhagfyr 1993
|
|
|
Ionawr 1994
|
|
|
Chwefror 1994
|
|
|
Mawrth 1994
|
|
|
Ebrill 1994
|
|
|
Mai 1994
|
|
|
Mehefin 1994
|
|
|
Gorffennaf 1994
|
|
|
Awst 1994
|
|
|
Medi 1994
|
|
|
Hydref 1994
|
|
|
Tachwedd 1994
|
|
|
Rhagfyr 1994
|
|
|
Ionawr 1995
|
24.7
|
24.9
|
Chwefror 1995
|
24.7
|
24.8
|
Mawrth 1995
|
24.6
|
24.6
|
Ebrill 1995
|
24.4
|
24.8
|
Mai 1995
|
24.6
|
24.8
|
Mehefin 1995
|
24.6
|
24.7
|
Gorffennaf 1995
|
24.8
|
25.1
|
Awst 1995
|
24.7
|
24.9
|
Medi 1995
|
24.2
|
24.7
|
Hydref 1995
|
24.3
|
24.2
|
Tachwedd 1995
|
24.6
|
24.5
|
Rhagfyr 1995
|
24.6
|
24.3
|
Ionawr 1996
|
24.7
|
24.0
|
Chwefror 1996
|
24.9
|
24.1
|
Mawrth 1996
|
24.6
|
24.0
|
Ebrill 1996
|
24.8
|
24.4
|
Mai 1996
|
24.6
|
24.6
|
Mehefin 1996
|
25.2
|
24.7
|
Gorffennaf 1996
|
25.2
|
25.0
|
Awst 1996
|
25.5
|
25.4
|
Medi 1996
|
25.3
|
25.2
|
Hydref 1996
|
25.5
|
25.2
|
Tachwedd 1996
|
25.7
|
25.6
|
Rhagfyr 1996
|
25.8
|
25.8
|
Ionawr 1997
|
25.8
|
25.9
|
Chwefror 1997
|
26.3
|
26.1
|
Mawrth 1997
|
26.3
|
26.2
|
Ebrill 1997
|
26.3
|
26.4
|
Mai 1997
|
26.8
|
27.1
|
Mehefin 1997
|
27.1
|
27.6
|
Gorffennaf 1997
|
27.5
|
28.2
|
Awst 1997
|
27.6
|
28.4
|
Medi 1997
|
28.2
|
28.5
|
Hydref 1997
|
28.4
|
29.0
|
Tachwedd 1997
|
28.3
|
28.8
|
Rhagfyr 1997
|
28.9
|
29.0
|
Ionawr 1998
|
29.4
|
29.3
|
Chwefror 1998
|
29.6
|
29.2
|
Mawrth 1998
|
29.5
|
29.3
|
Ebrill 1998
|
30.1
|
30.0
|
Mai 1998
|
30.2
|
30.6
|
Mehefin 1998
|
30.6
|
30.7
|
Gorffennaf 1998
|
30.8
|
31.1
|
Awst 1998
|
31.1
|
31.2
|
Medi 1998
|
30.9
|
31.4
|
Hydref 1998
|
31.3
|
31.3
|
Tachwedd 1998
|
31.2
|
31.2
|
Rhagfyr 1998
|
31.5
|
31.2
|
Ionawr 1999
|
32.0
|
31.4
|
Chwefror 1999
|
31.8
|
31.5
|
Mawrth 1999
|
31.7
|
31.5
|
Ebrill 1999
|
31.9
|
32.2
|
Mai 1999
|
32.8
|
32.5
|
Mehefin 1999
|
33.3
|
33.2
|
Gorffennaf 1999
|
33.7
|
33.8
|
Awst 1999
|
34.0
|
34.3
|
Medi 1999
|
34.6
|
35.0
|
Hydref 1999
|
35.0
|
35.2
|
Tachwedd 1999
|
35.5
|
36.0
|
Rhagfyr 1999
|
36.9
|
36.7
|
Ionawr 2000
|
36.8
|
36.9
|
Chwefror 2000
|
37.0
|
36.8
|
Mawrth 2000
|
37.6
|
37.6
|
Ebrill 2000
|
38.8
|
39.1
|
Mai 2000
|
39.7
|
39.9
|
Mehefin 2000
|
39.6
|
40.2
|
Gorffennaf 2000
|
40.8
|
41.1
|
Awst 2000
|
41.7
|
41.6
|
Medi 2000
|
41.7
|
41.8
|
Hydref 2000
|
41.3
|
41.4
|
Tachwedd 2000
|
42.1
|
41.6
|
Rhagfyr 2000
|
42.6
|
42.0
|
Ionawr 2001
|
43.4
|
42.2
|
Chwefror 2001
|
43.9
|
42.1
|
Mawrth 2001
|
43.8
|
42.8
|
Ebrill 2001
|
44.7
|
43.6
|
Mai 2001
|
44.5
|
44.5
|
Mehefin 2001
|
46.0
|
45.0
|
Gorffennaf 2001
|
46.4
|
46.0
|
Awst 2001
|
48.2
|
47.2
|
Medi 2001
|
49.1
|
47.4
|
Hydref 2001
|
49.4
|
47.6
|
Tachwedd 2001
|
49.5
|
48.3
|
Rhagfyr 2001
|
50.7
|
48.7
|
Ionawr 2002
|
51.1
|
49.0
|
Chwefror 2002
|
52.4
|
49.4
|
Mawrth 2002
|
52.3
|
50.5
|
Ebrill 2002
|
54.4
|
52.4
|
Mai 2002
|
55.1
|
53.8
|
Mehefin 2002
|
56.1
|
54.6
|
Gorffennaf 2002
|
57.3
|
56.6
|
Awst 2002
|
58.9
|
58.1
|
Medi 2002
|
58.6
|
58.7
|
Hydref 2002
|
60.3
|
60.0
|
Tachwedd 2002
|
61.3
|
61.6
|
Rhagfyr 2002
|
62.0
|
62.1
|
Ionawr 2003
|
62.4
|
63.5
|
Chwefror 2003
|
63.4
|
63.4
|
Mawrth 2003
|
64.2
|
63.8
|
Ebrill 2003
|
65.0
|
65.2
|
Mai 2003
|
65.0
|
65.6
|
Mehefin 2003
|
65.8
|
65.4
|
Gorffennaf 2003
|
67.1
|
67.2
|
Awst 2003
|
66.8
|
67.6
|
Medi 2003
|
66.4
|
67.5
|
Hydref 2003
|
67.2
|
68.1
|
Tachwedd 2003
|
67.5
|
68.4
|
Rhagfyr 2003
|
68.1
|
69.1
|
Ionawr 2004
|
69.7
|
69.9
|
Chwefror 2004
|
70.7
|
70.1
|
Mawrth 2004
|
70.8
|
70.7
|
Ebrill 2004
|
70.3
|
72.5
|
Mai 2004
|
72.0
|
73.0
|
Mehefin 2004
|
74.2
|
74.4
|
Gorffennaf 2004
|
72.4
|
75.7
|
Awst 2004
|
73.9
|
76.7
|
Medi 2004
|
74.9
|
77.0
|
Hydref 2004
|
75.3
|
77.1
|
Tachwedd 2004
|
76.2
|
77.1
|
Rhagfyr 2004
|
76.4
|
76.6
|
Ionawr 2005
|
77.8
|
76.6
|
Chwefror 2005
|
77.8
|
75.7
|
Mawrth 2005
|
77.7
|
75.8
|
Ebrill 2005
|
78.4
|
76.0
|
Mai 2005
|
79.2
|
77.3
|
Mehefin 2005
|
79.3
|
77.8
|
Gorffennaf 2005
|
79.6
|
78.3
|
Awst 2005
|
79.6
|
78.2
|
Medi 2005
|
79.6
|
78.4
|
Hydref 2005
|
79.8
|
77.9
|
Tachwedd 2005
|
79.8
|
77.8
|
Rhagfyr 2005
|
81.0
|
78.3
|
Ionawr 2006
|
80.1
|
78.1
|
Chwefror 2006
|
81.4
|
78.1
|
Mawrth 2006
|
81.4
|
78.8
|
Ebrill 2006
|
82.2
|
80.0
|
Mai 2006
|
82.9
|
80.8
|
Mehefin 2006
|
82.4
|
81.0
|
Gorffennaf 2006
|
83.3
|
82.7
|
Awst 2006
|
83.0
|
83.5
|
Medi 2006
|
83.7
|
83.5
|
Hydref 2006
|
84.5
|
84.0
|
Tachwedd 2006
|
83.8
|
84.4
|
Rhagfyr 2006
|
85.8
|
85.2
|
Ionawr 2007
|
85.7
|
85.3
|
Chwefror 2007
|
85.9
|
85.5
|
Mawrth 2007
|
85.6
|
86.3
|
Ebrill 2007
|
86.5
|
87.4
|
Mai 2007
|
89.2
|
88.0
|
Mehefin 2007
|
89.0
|
89.7
|
Gorffennaf 2007
|
90.5
|
90.5
|
Awst 2007
|
88.7
|
91.4
|
Medi 2007
|
89.8
|
91.7
|
Hydref 2007
|
90.5
|
91.5
|
Tachwedd 2007
|
90.3
|
91.9
|
Rhagfyr 2007
|
91.0
|
91.7
|
Ionawr 2008
|
90.6
|
90.9
|
Chwefror 2008
|
91.6
|
89.9
|
Mawrth 2008
|
89.7
|
88.9
|
Ebrill 2008
|
89.1
|
88.4
|
Mai 2008
|
89.5
|
89.2
|
Mehefin 2008
|
87.8
|
87.9
|
Gorffennaf 2008
|
87.2
|
87.7
|
Awst 2008
|
82.3
|
84.8
|
Medi 2008
|
81.3
|
82.6
|
Hydref 2008
|
79.0
|
80.6
|
Tachwedd 2008
|
77.2
|
78.2
|
Rhagfyr 2008
|
75.2
|
77.7
|
Ionawr 2009
|
77.0
|
76.8
|
Chwefror 2009
|
75.2
|
75.1
|
Mawrth 2009
|
74.1
|
73.6
|
Ebrill 2009
|
74.7
|
74.8
|
Mai 2009
|
75.5
|
76.2
|
Mehefin 2009
|
74.6
|
76.2
|
Gorffennaf 2009
|
76.5
|
78.3
|
Awst 2009
|
76.3
|
79.4
|
Medi 2009
|
78.2
|
80.2
|
Hydref 2009
|
77.3
|
80.4
|
Tachwedd 2009
|
77.5
|
81.1
|
Rhagfyr 2009
|
78.0
|
81.5
|
Ionawr 2010
|
76.2
|
83.0
|
Chwefror 2010
|
79.3
|
82.7
|
Mawrth 2010
|
79.6
|
82.8
|
Ebrill 2010
|
79.2
|
84.2
|
Mai 2010
|
79.7
|
84.6
|
Mehefin 2010
|
79.6
|
84.4
|
Gorffennaf 2010
|
79.5
|
86.0
|
Awst 2010
|
80.4
|
85.5
|
Medi 2010
|
81.8
|
85.8
|
Hydref 2010
|
81.2
|
84.4
|
Tachwedd 2010
|
80.2
|
84.2
|
Rhagfyr 2010
|
81.6
|
83.6
|
Ionawr 2011
|
80.8
|
83.2
|
Chwefror 2011
|
79.9
|
82.3
|
Mawrth 2011
|
82.1
|
82.6
|
Ebrill 2011
|
81.6
|
83.1
|
Mai 2011
|
82.0
|
83.2
|
Mehefin 2011
|
80.5
|
83.1
|
Gorffennaf 2011
|
82.7
|
84.2
|
Awst 2011
|
81.4
|
84.7
|
Medi 2011
|
80.9
|
83.9
|
Hydref 2011
|
81.6
|
83.8
|
Tachwedd 2011
|
82.6
|
84.1
|
Rhagfyr 2011
|
81.5
|
83.8
|
Ionawr 2012
|
81.3
|
84.4
|
Chwefror 2012
|
81.2
|
83.6
|
Mawrth 2012
|
81.6
|
83.0
|
Ebrill 2012
|
82.4
|
84.7
|
Mai 2012
|
82.7
|
85.1
|
Mehefin 2012
|
82.0
|
85.1
|
Gorffennaf 2012
|
81.7
|
86.4
|
Awst 2012
|
82.0
|
86.4
|
Medi 2012
|
82.3
|
85.8
|
Hydref 2012
|
84.4
|
85.9
|
Tachwedd 2012
|
84.3
|
85.5
|
Rhagfyr 2012
|
84.2
|
85.1
|
Ionawr 2013
|
82.2
|
85.4
|
Chwefror 2013
|
81.7
|
84.6
|
Mawrth 2013
|
85.1
|
86.0
|
Ebrill 2013
|
85.2
|
86.3
|
Mai 2013
|
84.2
|
86.0
|
Mehefin 2013
|
84.5
|
87.0
|
Gorffennaf 2013
|
85.3
|
88.5
|
Awst 2013
|
85.8
|
88.9
|
Medi 2013
|
86.7
|
88.7
|
Hydref 2013
|
87.8
|
89.4
|
Tachwedd 2013
|
87.5
|
88.9
|
Rhagfyr 2013
|
90.6
|
90.8
|
Ionawr 2014
|
88.5
|
90.3
|
Chwefror 2014
|
90.3
|
90.9
|
Mawrth 2014
|
90.6
|
91.3
|
Ebrill 2014
|
92.5
|
93.2
|
Mai 2014
|
95.0
|
94.7
|
Mehefin 2014
|
94.6
|
95.6
|
Gorffennaf 2014
|
95.2
|
97.4
|
Awst 2014
|
95.5
|
98.5
|
Medi 2014
|
96.2
|
99.4
|
Hydref 2014
|
97.4
|
99.8
|
Tachwedd 2014
|
95.9
|
99.5
|
Rhagfyr 2014
|
98.3
|
99.6
|
Ionawr 2015
|
100.0
|
100.0
|
Chwefror 2015
|
100.8
|
100.5
|
Mawrth 2015
|
101.0
|
100.5
|
Ebrill 2015
|
101.0
|
101.6
|
Mai 2015
|
101.7
|
103.1
|
Mehefin 2015
|
100.2
|
103.7
|
Gorffennaf 2015
|
104.2
|
106.1
|
Awst 2015
|
104.3
|
107.4
|
Medi 2015
|
105.6
|
108.5
|
Hydref 2015
|
106.5
|
109.0
|
Tachwedd 2015
|
108.2
|
110.5
|
Rhagfyr 2015
|
111.1
|
110.8
|
Ionawr 2016
|
110.6
|
111.9
|
Chwefror 2016
|
108.7
|
112.2
|
Mawrth 2016
|
108.8
|
114.2
|
Ebrill 2016
|
115.8
|
113.6
|
Mai 2016
|
120.1
|
115.5
|
Mehefin 2016
|
117.0
|
117.1
|
Gorffennaf 2016
|
118.4
|
118.6
|
Awst 2016
|
117.4
|
118.9
|
Medi 2016
|
119.2
|
119.7
|
Hydref 2016
|
120.9
|
119.3
|
Tachwedd 2016
|
121.0
|
119.7
|
Rhagfyr 2016
|
122.1
|
120.8
|
Ionawr 2017
|
124.0
|
120.2
|
Chwefror 2017
|
123.8
|
121.3
|
Mawrth 2017
|
123.6
|
120.4
|
Ebrill 2017
|
124.0
|
122.3
|
Mai 2017
|
125.3
|
123.4
|
Mehefin 2017
|
124.5
|
124.0
|
Gorffennaf 2017
|
127.7
|
125.9
|
Awst 2017
|
126.0
|
125.9
|
Medi 2017
|
126.7
|
126.2
|
Hydref 2017
|
128.1
|
126.2
|
Tachwedd 2017
|
125.5
|
125.7
|
Rhagfyr 2017
|
127.0
|
126.5
|
Ionawr 2018
|
130.4
|
126.3
|
Chwefror 2018
|
134.0
|
125.5
|
Mawrth 2018
|
128.7
|
125.3
|
Ebrill 2018
|
130.2
|
125.7
|
Mai 2018
|
127.8
|
126.2
|
Mehefin 2018
|
128.4
|
126.8
|
Gorffennaf 2018
|
130.9
|
128.7
|
Awst 2018
|
131.9
|
128.6
|
Medi 2018
|
129.5
|
128.2
|
Hydref 2018
|
133.0
|
128.0
|
Tachwedd 2018
|
128.3
|
128.7
|
Rhagfyr 2018
|
129.8
|
127.3
|
Ionawr 2019
|
129.6
|
126.2
|
Chwefror 2019
|
134.3
|
126.3
|
Mawrth 2019
|
130.2
|
125.3
|
Ebrill 2019
|
130.8
|
125.8
|
Mai 2019
|
129.4
|
126.3
|
Mehefin 2019
|
127.1
|
126.4
|
Gorffennaf 2019
|
133.2
|
127.1
|
Awst 2019
|
129.7
|
127.1
|
Medi 2019
|
131.4
|
127.6
|
Hydref 2019
|
131.4
|
127.1
|
Tachwedd 2019
|
125.2
|
126.9
|
Rhagfyr 2019
|
126.1
|
127.6
|
Ionawr 2020
|
133.5
|
125.9
|