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
|
Tai ar wahân
|
Tai pâr
|
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
|
88394.0
|
56279.0
|
Chwefror 1995
|
86550.0
|
56552.0
|
Mawrth 1995
|
85654.0
|
56015.0
|
Ebrill 1995
|
86591.0
|
56297.0
|
Mai 1995
|
86389.0
|
56527.0
|
Mehefin 1995
|
86123.0
|
56201.0
|
Gorffennaf 1995
|
88986.0
|
56949.0
|
Awst 1995
|
88282.0
|
56454.0
|
Medi 1995
|
86784.0
|
56050.0
|
Hydref 1995
|
86046.0
|
55212.0
|
Tachwedd 1995
|
86735.0
|
55800.0
|
Rhagfyr 1995
|
85238.0
|
55620.0
|
Ionawr 1996
|
85385.0
|
54821.0
|
Chwefror 1996
|
85481.0
|
55488.0
|
Mawrth 1996
|
85545.0
|
55242.0
|
Ebrill 1996
|
86636.0
|
55558.0
|
Mai 1996
|
86309.0
|
56001.0
|
Mehefin 1996
|
87670.0
|
56469.0
|
Gorffennaf 1996
|
89095.0
|
56893.0
|
Awst 1996
|
90824.0
|
57736.0
|
Medi 1996
|
90146.0
|
57340.0
|
Hydref 1996
|
90567.0
|
57566.0
|
Tachwedd 1996
|
90949.0
|
58255.0
|
Rhagfyr 1996
|
91573.0
|
59105.0
|
Ionawr 1997
|
92562.0
|
58841.0
|
Chwefror 1997
|
93599.0
|
59529.0
|
Mawrth 1997
|
93213.0
|
59528.0
|
Ebrill 1997
|
93915.0
|
60470.0
|
Mai 1997
|
95772.0
|
61927.0
|
Mehefin 1997
|
98160.0
|
62706.0
|
Gorffennaf 1997
|
100480.0
|
64166.0
|
Awst 1997
|
101448.0
|
64646.0
|
Medi 1997
|
101997.0
|
64929.0
|
Hydref 1997
|
103813.0
|
66130.0
|
Tachwedd 1997
|
102838.0
|
65600.0
|
Rhagfyr 1997
|
103299.0
|
66427.0
|
Ionawr 1998
|
105812.0
|
66457.0
|
Chwefror 1998
|
103674.0
|
66703.0
|
Mawrth 1998
|
104618.0
|
67084.0
|
Ebrill 1998
|
107515.0
|
68642.0
|
Mai 1998
|
108463.0
|
69516.0
|
Mehefin 1998
|
109551.0
|
69781.0
|
Gorffennaf 1998
|
111999.0
|
70898.0
|
Awst 1998
|
112097.0
|
70820.0
|
Medi 1998
|
112864.0
|
71356.0
|
Hydref 1998
|
112725.0
|
71418.0
|
Tachwedd 1998
|
112026.0
|
71017.0
|
Rhagfyr 1998
|
111177.0
|
71313.0
|
Ionawr 1999
|
112962.0
|
72024.0
|
Chwefror 1999
|
112513.0
|
72126.0
|
Mawrth 1999
|
112182.0
|
71936.0
|
Ebrill 1999
|
114712.0
|
73492.0
|
Mai 1999
|
116028.0
|
74289.0
|
Mehefin 1999
|
118554.0
|
75632.0
|
Gorffennaf 1999
|
121624.0
|
76762.0
|
Awst 1999
|
123482.0
|
77778.0
|
Medi 1999
|
126579.0
|
79212.0
|
Hydref 1999
|
126972.0
|
80153.0
|
Tachwedd 1999
|
128969.0
|
81866.0
|
Rhagfyr 1999
|
130593.0
|
83443.0
|
Ionawr 2000
|
132857.0
|
83929.0
|
Chwefror 2000
|
131789.0
|
83508.0
|
Mawrth 2000
|
134195.0
|
85821.0
|
Ebrill 2000
|
139272.0
|
88803.0
|
Mai 2000
|
142481.0
|
91057.0
|
Mehefin 2000
|
142505.0
|
91606.0
|
Gorffennaf 2000
|
149229.0
|
93730.0
|
Awst 2000
|
150054.0
|
94929.0
|
Medi 2000
|
152151.0
|
94892.0
|
Hydref 2000
|
150018.0
|
94784.0
|
Tachwedd 2000
|
151247.0
|
94775.0
|
Rhagfyr 2000
|
151333.0
|
95977.0
|
Ionawr 2001
|
152718.0
|
96165.0
|
Chwefror 2001
|
152369.0
|
96542.0
|
Mawrth 2001
|
153958.0
|
97735.0
|
Ebrill 2001
|
157902.0
|
99068.0
|
Mai 2001
|
159685.0
|
101413.0
|
Mehefin 2001
|
161102.0
|
102279.0
|
Gorffennaf 2001
|
166600.0
|
104639.0
|
Awst 2001
|
171014.0
|
107141.0
|
Medi 2001
|
172938.0
|
107333.0
|
Hydref 2001
|
173668.0
|
108888.0
|
Tachwedd 2001
|
173897.0
|
110202.0
|
Rhagfyr 2001
|
175133.0
|
111052.0
|
Ionawr 2002
|
178531.0
|
111860.0
|
Chwefror 2002
|
178239.0
|
112472.0
|
Mawrth 2002
|
180883.0
|
115426.0
|
Ebrill 2002
|
188269.0
|
119163.0
|
Mai 2002
|
191945.0
|
122685.0
|
Mehefin 2002
|
193890.0
|
123768.0
|
Gorffennaf 2002
|
203803.0
|
128440.0
|
Awst 2002
|
207877.0
|
131921.0
|
Medi 2002
|
210080.0
|
133550.0
|
Hydref 2002
|
214068.0
|
137065.0
|
Tachwedd 2002
|
219277.0
|
139673.0
|
Rhagfyr 2002
|
217969.0
|
141857.0
|
Ionawr 2003
|
225423.0
|
143648.0
|
Chwefror 2003
|
223248.0
|
144777.0
|
Mawrth 2003
|
224969.0
|
145547.0
|
Ebrill 2003
|
229054.0
|
149100.0
|
Mai 2003
|
229649.0
|
149985.0
|
Mehefin 2003
|
228300.0
|
149033.0
|
Gorffennaf 2003
|
235325.0
|
154215.0
|
Awst 2003
|
236916.0
|
154417.0
|
Medi 2003
|
236267.0
|
154044.0
|
Hydref 2003
|
238101.0
|
155539.0
|
Tachwedd 2003
|
239031.0
|
156717.0
|
Rhagfyr 2003
|
237762.0
|
157761.0
|
Ionawr 2004
|
244273.0
|
159629.0
|
Chwefror 2004
|
242003.0
|
160224.0
|
Mawrth 2004
|
243507.0
|
160996.0
|
Ebrill 2004
|
246368.0
|
165843.0
|
Mai 2004
|
246878.0
|
166587.0
|
Mehefin 2004
|
252412.0
|
169813.0
|
Gorffennaf 2004
|
257407.0
|
173561.0
|
Awst 2004
|
261320.0
|
174953.0
|
Medi 2004
|
262061.0
|
175207.0
|
Hydref 2004
|
262166.0
|
175817.0
|
Tachwedd 2004
|
261675.0
|
175676.0
|
Rhagfyr 2004
|
258355.0
|
174280.0
|
Ionawr 2005
|
261638.0
|
174649.0
|
Chwefror 2005
|
256614.0
|
173937.0
|
Mawrth 2005
|
256064.0
|
173682.0
|
Ebrill 2005
|
256469.0
|
174987.0
|
Mai 2005
|
262700.0
|
176592.0
|
Mehefin 2005
|
261105.0
|
177777.0
|
Gorffennaf 2005
|
264998.0
|
179833.0
|
Awst 2005
|
266069.0
|
178079.0
|
Medi 2005
|
264817.0
|
178664.0
|
Hydref 2005
|
263854.0
|
177657.0
|
Tachwedd 2005
|
263427.0
|
177657.0
|
Rhagfyr 2005
|
261602.0
|
178085.0
|
Ionawr 2006
|
264278.0
|
178331.0
|
Chwefror 2006
|
262068.0
|
178262.0
|
Mawrth 2006
|
265527.0
|
180014.0
|
Ebrill 2006
|
268766.0
|
183059.0
|
Mai 2006
|
271783.0
|
184492.0
|
Mehefin 2006
|
271014.0
|
184982.0
|
Gorffennaf 2006
|
277683.0
|
188653.0
|
Awst 2006
|
281714.0
|
190075.0
|
Medi 2006
|
281497.0
|
190421.0
|
Hydref 2006
|
282702.0
|
191461.0
|
Tachwedd 2006
|
284481.0
|
192567.0
|
Rhagfyr 2006
|
284310.0
|
194126.0
|
Ionawr 2007
|
287131.0
|
194409.0
|
Chwefror 2007
|
285488.0
|
194505.0
|
Mawrth 2007
|
288011.0
|
196435.0
|
Ebrill 2007
|
291485.0
|
198681.0
|
Mai 2007
|
292525.0
|
200291.0
|
Mehefin 2007
|
299203.0
|
203733.0
|
Gorffennaf 2007
|
304963.0
|
205796.0
|
Awst 2007
|
307762.0
|
207276.0
|
Medi 2007
|
307787.0
|
207816.0
|
Hydref 2007
|
308201.0
|
207069.0
|
Tachwedd 2007
|
309679.0
|
208200.0
|
Rhagfyr 2007
|
307194.0
|
207645.0
|
Ionawr 2008
|
307218.0
|
205752.0
|
Chwefror 2008
|
304795.0
|
204523.0
|
Mawrth 2008
|
298874.0
|
202595.0
|
Ebrill 2008
|
299166.0
|
200483.0
|
Mai 2008
|
300524.0
|
203470.0
|
Mehefin 2008
|
295569.0
|
200254.0
|
Gorffennaf 2008
|
296573.0
|
199513.0
|
Awst 2008
|
286699.0
|
192100.0
|
Medi 2008
|
283951.0
|
186654.0
|
Hydref 2008
|
273834.0
|
182267.0
|
Tachwedd 2008
|
265300.0
|
177975.0
|
Rhagfyr 2008
|
260897.0
|
175110.0
|
Ionawr 2009
|
262679.0
|
173357.0
|
Chwefror 2009
|
254338.0
|
170776.0
|
Mawrth 2009
|
250930.0
|
166616.0
|
Ebrill 2009
|
252339.0
|
170057.0
|
Mai 2009
|
256711.0
|
173304.0
|
Mehefin 2009
|
257835.0
|
173039.0
|
Gorffennaf 2009
|
265957.0
|
177810.0
|
Awst 2009
|
268989.0
|
180074.0
|
Medi 2009
|
272208.0
|
182027.0
|
Hydref 2009
|
272045.0
|
183059.0
|
Tachwedd 2009
|
274840.0
|
183622.0
|
Rhagfyr 2009
|
273080.0
|
185650.0
|
Ionawr 2010
|
283685.0
|
188120.0
|
Chwefror 2010
|
282647.0
|
188597.0
|
Mawrth 2010
|
282498.0
|
187826.0
|
Ebrill 2010
|
285732.0
|
191773.0
|
Mai 2010
|
287976.0
|
191869.0
|
Mehefin 2010
|
285552.0
|
191703.0
|
Gorffennaf 2010
|
294919.0
|
194993.0
|
Awst 2010
|
294066.0
|
195208.0
|
Medi 2010
|
293937.0
|
194725.0
|
Hydref 2010
|
289679.0
|
192200.0
|
Tachwedd 2010
|
289430.0
|
191341.0
|
Rhagfyr 2010
|
286178.0
|
190710.0
|
Ionawr 2011
|
288271.0
|
188904.0
|
Chwefror 2011
|
283755.0
|
186476.0
|
Mawrth 2011
|
286647.0
|
187453.0
|
Ebrill 2011
|
285959.0
|
188709.0
|
Mai 2011
|
284943.0
|
189344.0
|
Mehefin 2011
|
282671.0
|
189498.0
|
Gorffennaf 2011
|
288179.0
|
191492.0
|
Awst 2011
|
292341.0
|
193192.0
|
Medi 2011
|
289479.0
|
190594.0
|
Hydref 2011
|
289661.0
|
190991.0
|
Tachwedd 2011
|
289483.0
|
191699.0
|
Rhagfyr 2011
|
287289.0
|
191451.0
|
Ionawr 2012
|
290062.0
|
192874.0
|
Chwefror 2012
|
286891.0
|
190850.0
|
Mawrth 2012
|
281053.0
|
189865.0
|
Ebrill 2012
|
290123.0
|
192800.0
|
Mai 2012
|
290911.0
|
194199.0
|
Mehefin 2012
|
289564.0
|
193800.0
|
Gorffennaf 2012
|
295324.0
|
196148.0
|
Awst 2012
|
294756.0
|
196755.0
|
Medi 2012
|
293010.0
|
194877.0
|
Hydref 2012
|
294420.0
|
196138.0
|
Tachwedd 2012
|
292347.0
|
195196.0
|
Rhagfyr 2012
|
292176.0
|
194185.0
|
Ionawr 2013
|
292266.0
|
195539.0
|
Chwefror 2013
|
288692.0
|
193044.0
|
Mawrth 2013
|
296032.0
|
196231.0
|
Ebrill 2013
|
294906.0
|
197326.0
|
Mai 2013
|
292782.0
|
196659.0
|
Mehefin 2013
|
296501.0
|
198652.0
|
Gorffennaf 2013
|
301945.0
|
201705.0
|
Awst 2013
|
303995.0
|
203194.0
|
Medi 2013
|
305161.0
|
202134.0
|
Hydref 2013
|
307250.0
|
204272.0
|
Tachwedd 2013
|
304046.0
|
203865.0
|
Rhagfyr 2013
|
308368.0
|
208190.0
|
Ionawr 2014
|
309635.0
|
206139.0
|
Chwefror 2014
|
311438.0
|
207989.0
|
Mawrth 2014
|
310911.0
|
209502.0
|
Ebrill 2014
|
317771.0
|
213139.0
|
Mai 2014
|
321972.0
|
217099.0
|
Mehefin 2014
|
325087.0
|
219357.0
|
Gorffennaf 2014
|
331478.0
|
222717.0
|
Awst 2014
|
335534.0
|
225331.0
|
Medi 2014
|
338518.0
|
226856.0
|
Hydref 2014
|
339814.0
|
228357.0
|
Tachwedd 2014
|
338123.0
|
227380.0
|
Rhagfyr 2014
|
339223.0
|
228001.0
|
Ionawr 2015
|
341392.0
|
229452.0
|
Chwefror 2015
|
343206.0
|
229899.0
|
Mawrth 2015
|
344270.0
|
230842.0
|
Ebrill 2015
|
346058.0
|
232640.0
|
Mai 2015
|
349887.0
|
236505.0
|
Mehefin 2015
|
350518.0
|
237820.0
|
Gorffennaf 2015
|
360371.0
|
243547.0
|
Awst 2015
|
364252.0
|
246253.0
|
Medi 2015
|
371223.0
|
248062.0
|
Hydref 2015
|
370828.0
|
250242.0
|
Tachwedd 2015
|
375589.0
|
253838.0
|
Rhagfyr 2015
|
377170.0
|
254600.0
|
Ionawr 2016
|
379199.0
|
258406.0
|
Chwefror 2016
|
379952.0
|
257710.0
|
Mawrth 2016
|
388199.0
|
260633.0
|
Ebrill 2016
|
383402.0
|
261639.0
|
Mai 2016
|
387279.0
|
265838.0
|
Mehefin 2016
|
396584.0
|
268161.0
|
Gorffennaf 2016
|
399400.0
|
272526.0
|
Awst 2016
|
400873.0
|
272786.0
|
Medi 2016
|
405842.0
|
275134.0
|
Hydref 2016
|
406574.0
|
274704.0
|
Tachwedd 2016
|
408207.0
|
274904.0
|
Rhagfyr 2016
|
411745.0
|
276944.0
|
Ionawr 2017
|
410560.0
|
277071.0
|
Chwefror 2017
|
411945.0
|
277347.0
|
Mawrth 2017
|
411211.0
|
276613.0
|
Ebrill 2017
|
416559.0
|
280435.0
|
Mai 2017
|
417077.0
|
284164.0
|
Mehefin 2017
|
420192.0
|
284692.0
|
Gorffennaf 2017
|
426795.0
|
289861.0
|
Awst 2017
|
426208.0
|
289071.0
|
Medi 2017
|
430677.0
|
290060.0
|
Hydref 2017
|
431852.0
|
291690.0
|
Tachwedd 2017
|
427708.0
|
289843.0
|
Rhagfyr 2017
|
430566.0
|
291237.0
|
Ionawr 2018
|
431026.0
|
292421.0
|
Chwefror 2018
|
431618.0
|
290738.0
|
Mawrth 2018
|
428037.0
|
289684.0
|
Ebrill 2018
|
429061.0
|
291493.0
|
Mai 2018
|
431591.0
|
292235.0
|
Mehefin 2018
|
432315.0
|
293907.0
|
Gorffennaf 2018
|
441561.0
|
297865.0
|
Awst 2018
|
440176.0
|
298001.0
|
Medi 2018
|
439598.0
|
297008.0
|
Hydref 2018
|
440526.0
|
297071.0
|
Tachwedd 2018
|
442518.0
|
297964.0
|
Rhagfyr 2018
|
435661.0
|
295579.0
|
Ionawr 2019
|
437169.0
|
293384.0
|
Chwefror 2019
|
436711.0
|
293985.0
|
Mawrth 2019
|
430544.0
|
291868.0
|
Ebrill 2019
|
431806.0
|
293143.0
|
Mai 2019
|
433455.0
|
293789.0
|
Mehefin 2019
|
432818.0
|
293200.0
|
Gorffennaf 2019
|
436680.0
|
296029.0
|
Awst 2019
|
437072.0
|
295241.0
|
Medi 2019
|
437419.0
|
295323.0
|
Hydref 2019
|
436135.0
|
297363.0
|
Tachwedd 2019
|
436072.0
|
295069.0
|
Rhagfyr 2019
|
436642.0
|
295865.0
|
Ionawr 2020
|
433597.0
|
295225.0
|
Dyddiad
|
Tai ar wahân
|
Tai pâr
|
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
|
-3.4
|
-2.6
|
Chwefror 1996
|
-1.2
|
-1.9
|
Mawrth 1996
|
-0.1
|
-1.4
|
Ebrill 1996
|
0.1
|
-1.3
|
Mai 1996
|
-0.1
|
-0.9
|
Mehefin 1996
|
1.8
|
0.5
|
Gorffennaf 1996
|
0.1
|
-0.1
|
Awst 1996
|
2.9
|
2.3
|
Medi 1996
|
3.9
|
2.3
|
Hydref 1996
|
5.2
|
4.3
|
Tachwedd 1996
|
4.9
|
4.4
|
Rhagfyr 1996
|
7.4
|
6.3
|
Ionawr 1997
|
8.4
|
7.3
|
Chwefror 1997
|
9.5
|
7.3
|
Mawrth 1997
|
9.0
|
7.8
|
Ebrill 1997
|
8.4
|
8.8
|
Mai 1997
|
11.0
|
10.6
|
Mehefin 1997
|
12.0
|
11.0
|
Gorffennaf 1997
|
12.8
|
12.8
|
Awst 1997
|
11.7
|
12.0
|
Medi 1997
|
13.2
|
13.2
|
Hydref 1997
|
14.6
|
14.9
|
Tachwedd 1997
|
13.1
|
12.6
|
Rhagfyr 1997
|
12.8
|
12.4
|
Ionawr 1998
|
14.3
|
12.9
|
Chwefror 1998
|
10.8
|
12.0
|
Mawrth 1998
|
12.2
|
12.7
|
Ebrill 1998
|
14.5
|
13.5
|
Mai 1998
|
13.2
|
12.2
|
Mehefin 1998
|
11.6
|
11.3
|
Gorffennaf 1998
|
11.5
|
10.5
|
Awst 1998
|
10.5
|
9.6
|
Medi 1998
|
10.6
|
9.9
|
Hydref 1998
|
8.6
|
8.0
|
Tachwedd 1998
|
8.9
|
8.3
|
Rhagfyr 1998
|
7.6
|
7.4
|
Ionawr 1999
|
6.8
|
8.4
|
Chwefror 1999
|
8.5
|
8.1
|
Mawrth 1999
|
7.2
|
7.2
|
Ebrill 1999
|
6.7
|
7.1
|
Mai 1999
|
7.0
|
6.9
|
Mehefin 1999
|
8.2
|
8.4
|
Gorffennaf 1999
|
8.6
|
8.3
|
Awst 1999
|
10.2
|
9.8
|
Medi 1999
|
12.2
|
11.0
|
Hydref 1999
|
12.6
|
12.2
|
Tachwedd 1999
|
15.1
|
15.3
|
Rhagfyr 1999
|
17.5
|
17.0
|
Ionawr 2000
|
17.6
|
16.5
|
Chwefror 2000
|
17.1
|
15.8
|
Mawrth 2000
|
19.6
|
19.3
|
Ebrill 2000
|
21.4
|
20.8
|
Mai 2000
|
22.8
|
22.6
|
Mehefin 2000
|
20.2
|
21.1
|
Gorffennaf 2000
|
22.7
|
22.1
|
Awst 2000
|
21.5
|
22.0
|
Medi 2000
|
20.2
|
19.8
|
Hydref 2000
|
18.2
|
18.2
|
Tachwedd 2000
|
17.3
|
15.8
|
Rhagfyr 2000
|
15.9
|
15.0
|
Ionawr 2001
|
15.0
|
14.6
|
Chwefror 2001
|
15.6
|
15.6
|
Mawrth 2001
|
14.7
|
13.9
|
Ebrill 2001
|
13.4
|
11.6
|
Mai 2001
|
12.1
|
11.4
|
Mehefin 2001
|
13.0
|
11.6
|
Gorffennaf 2001
|
11.6
|
11.6
|
Awst 2001
|
14.0
|
12.9
|
Medi 2001
|
13.7
|
13.1
|
Hydref 2001
|
15.8
|
14.9
|
Tachwedd 2001
|
15.0
|
16.3
|
Rhagfyr 2001
|
15.7
|
15.7
|
Ionawr 2002
|
16.9
|
16.3
|
Chwefror 2002
|
17.0
|
16.5
|
Mawrth 2002
|
17.5
|
18.1
|
Ebrill 2002
|
19.2
|
20.3
|
Mai 2002
|
20.2
|
21.0
|
Mehefin 2002
|
20.4
|
21.0
|
Gorffennaf 2002
|
22.3
|
22.8
|
Awst 2002
|
21.6
|
23.1
|
Medi 2002
|
21.5
|
24.4
|
Hydref 2002
|
23.3
|
25.9
|
Tachwedd 2002
|
26.1
|
26.7
|
Rhagfyr 2002
|
24.5
|
27.7
|
Ionawr 2003
|
26.3
|
28.4
|
Chwefror 2003
|
25.2
|
28.7
|
Mawrth 2003
|
24.4
|
26.1
|
Ebrill 2003
|
21.7
|
25.1
|
Mai 2003
|
19.6
|
22.2
|
Mehefin 2003
|
17.8
|
20.4
|
Gorffennaf 2003
|
15.5
|
20.1
|
Awst 2003
|
14.0
|
17.0
|
Medi 2003
|
12.5
|
15.4
|
Hydref 2003
|
11.2
|
13.5
|
Tachwedd 2003
|
9.0
|
12.2
|
Rhagfyr 2003
|
9.1
|
11.2
|
Ionawr 2004
|
8.4
|
11.1
|
Chwefror 2004
|
8.4
|
10.7
|
Mawrth 2004
|
8.2
|
10.6
|
Ebrill 2004
|
7.6
|
11.2
|
Mai 2004
|
7.5
|
11.1
|
Mehefin 2004
|
10.6
|
13.9
|
Gorffennaf 2004
|
9.4
|
12.6
|
Awst 2004
|
10.3
|
13.3
|
Medi 2004
|
10.9
|
13.7
|
Hydref 2004
|
10.1
|
13.0
|
Tachwedd 2004
|
9.5
|
12.1
|
Rhagfyr 2004
|
8.7
|
10.5
|
Ionawr 2005
|
7.1
|
9.4
|
Chwefror 2005
|
6.0
|
8.6
|
Mawrth 2005
|
5.2
|
7.9
|
Ebrill 2005
|
4.1
|
5.5
|
Mai 2005
|
6.4
|
6.0
|
Mehefin 2005
|
3.4
|
4.7
|
Gorffennaf 2005
|
3.0
|
3.6
|
Awst 2005
|
1.8
|
1.8
|
Medi 2005
|
1.0
|
2.0
|
Hydref 2005
|
0.6
|
1.0
|
Tachwedd 2005
|
0.7
|
1.1
|
Rhagfyr 2005
|
1.3
|
2.2
|
Ionawr 2006
|
1.0
|
2.1
|
Chwefror 2006
|
2.1
|
2.5
|
Mawrth 2006
|
3.7
|
3.6
|
Ebrill 2006
|
4.8
|
4.6
|
Mai 2006
|
3.5
|
4.5
|
Mehefin 2006
|
3.8
|
4.0
|
Gorffennaf 2006
|
4.8
|
4.9
|
Awst 2006
|
5.9
|
6.7
|
Medi 2006
|
6.3
|
6.6
|
Hydref 2006
|
7.1
|
7.8
|
Tachwedd 2006
|
8.0
|
8.4
|
Rhagfyr 2006
|
8.7
|
9.0
|
Ionawr 2007
|
8.6
|
9.0
|
Chwefror 2007
|
8.9
|
9.1
|
Mawrth 2007
|
8.5
|
9.1
|
Ebrill 2007
|
8.4
|
8.5
|
Mai 2007
|
7.6
|
8.6
|
Mehefin 2007
|
10.4
|
10.1
|
Gorffennaf 2007
|
9.8
|
9.1
|
Awst 2007
|
9.2
|
9.0
|
Medi 2007
|
9.3
|
9.1
|
Hydref 2007
|
9.0
|
8.2
|
Tachwedd 2007
|
8.9
|
8.1
|
Rhagfyr 2007
|
8.0
|
7.0
|
Ionawr 2008
|
7.0
|
5.8
|
Chwefror 2008
|
6.8
|
5.2
|
Mawrth 2008
|
3.8
|
3.1
|
Ebrill 2008
|
2.6
|
0.9
|
Mai 2008
|
2.7
|
1.6
|
Mehefin 2008
|
-1.2
|
-1.7
|
Gorffennaf 2008
|
-2.8
|
-3.0
|
Awst 2008
|
-6.8
|
-7.3
|
Medi 2008
|
-7.7
|
-10.2
|
Hydref 2008
|
-11.2
|
-12.0
|
Tachwedd 2008
|
-14.3
|
-14.5
|
Rhagfyr 2008
|
-15.1
|
-15.7
|
Ionawr 2009
|
-14.5
|
-15.7
|
Chwefror 2009
|
-16.6
|
-16.5
|
Mawrth 2009
|
-16.0
|
-17.8
|
Ebrill 2009
|
-15.6
|
-15.2
|
Mai 2009
|
-14.6
|
-14.8
|
Mehefin 2009
|
-12.8
|
-13.6
|
Gorffennaf 2009
|
-10.3
|
-10.9
|
Awst 2009
|
-6.2
|
-6.3
|
Medi 2009
|
-4.1
|
-2.5
|
Hydref 2009
|
-0.6
|
0.4
|
Tachwedd 2009
|
3.6
|
3.2
|
Rhagfyr 2009
|
4.7
|
6.0
|
Ionawr 2010
|
8.0
|
8.5
|
Chwefror 2010
|
11.1
|
10.4
|
Mawrth 2010
|
12.6
|
12.7
|
Ebrill 2010
|
13.2
|
12.8
|
Mai 2010
|
12.2
|
10.7
|
Mehefin 2010
|
10.8
|
10.8
|
Gorffennaf 2010
|
10.9
|
9.7
|
Awst 2010
|
9.3
|
8.4
|
Medi 2010
|
8.0
|
7.0
|
Hydref 2010
|
6.5
|
5.0
|
Tachwedd 2010
|
5.3
|
4.2
|
Rhagfyr 2010
|
4.8
|
2.7
|
Ionawr 2011
|
1.6
|
0.4
|
Chwefror 2011
|
0.4
|
-1.1
|
Mawrth 2011
|
1.5
|
-0.2
|
Ebrill 2011
|
0.1
|
-1.6
|
Mai 2011
|
-1.0
|
-1.3
|
Mehefin 2011
|
-1.0
|
-1.2
|
Gorffennaf 2011
|
-2.3
|
-1.8
|
Awst 2011
|
-0.6
|
-1.0
|
Medi 2011
|
-1.5
|
-2.1
|
Hydref 2011
|
-0.0
|
-0.6
|
Tachwedd 2011
|
0.0
|
0.2
|
Rhagfyr 2011
|
0.4
|
0.4
|
Ionawr 2012
|
0.6
|
2.1
|
Chwefror 2012
|
1.1
|
2.4
|
Mawrth 2012
|
-2.0
|
1.3
|
Ebrill 2012
|
1.5
|
2.2
|
Mai 2012
|
2.1
|
2.6
|
Mehefin 2012
|
2.4
|
2.3
|
Gorffennaf 2012
|
2.5
|
2.4
|
Awst 2012
|
0.8
|
1.8
|
Medi 2012
|
1.2
|
2.2
|
Hydref 2012
|
1.6
|
2.7
|
Tachwedd 2012
|
1.0
|
1.8
|
Rhagfyr 2012
|
1.7
|
1.4
|
Ionawr 2013
|
0.8
|
1.4
|
Chwefror 2013
|
0.6
|
1.2
|
Mawrth 2013
|
5.3
|
3.4
|
Ebrill 2013
|
1.6
|
2.4
|
Mai 2013
|
0.6
|
1.3
|
Mehefin 2013
|
2.4
|
2.5
|
Gorffennaf 2013
|
2.2
|
2.8
|
Awst 2013
|
3.1
|
3.3
|
Medi 2013
|
4.2
|
3.7
|
Hydref 2013
|
4.4
|
4.2
|
Tachwedd 2013
|
4.0
|
4.4
|
Rhagfyr 2013
|
5.5
|
7.2
|
Ionawr 2014
|
5.9
|
5.4
|
Chwefror 2014
|
7.9
|
7.7
|
Mawrth 2014
|
5.0
|
6.8
|
Ebrill 2014
|
7.8
|
8.0
|
Mai 2014
|
10.0
|
10.4
|
Mehefin 2014
|
9.6
|
10.4
|
Gorffennaf 2014
|
9.8
|
10.4
|
Awst 2014
|
10.4
|
10.9
|
Medi 2014
|
10.9
|
12.2
|
Hydref 2014
|
10.6
|
11.8
|
Tachwedd 2014
|
11.2
|
11.5
|
Rhagfyr 2014
|
10.0
|
9.5
|
Ionawr 2015
|
10.3
|
11.3
|
Chwefror 2015
|
10.2
|
10.5
|
Mawrth 2015
|
10.7
|
10.2
|
Ebrill 2015
|
8.9
|
9.2
|
Mai 2015
|
8.7
|
8.9
|
Mehefin 2015
|
7.8
|
8.4
|
Gorffennaf 2015
|
8.7
|
9.4
|
Awst 2015
|
8.6
|
9.3
|
Medi 2015
|
9.7
|
9.4
|
Hydref 2015
|
9.1
|
9.6
|
Tachwedd 2015
|
11.1
|
11.6
|
Rhagfyr 2015
|
11.2
|
11.7
|
Ionawr 2016
|
11.1
|
12.6
|
Chwefror 2016
|
10.7
|
12.1
|
Mawrth 2016
|
12.8
|
12.9
|
Ebrill 2016
|
10.8
|
12.5
|
Mai 2016
|
10.7
|
12.4
|
Mehefin 2016
|
13.1
|
12.8
|
Gorffennaf 2016
|
10.8
|
11.9
|
Awst 2016
|
10.0
|
10.8
|
Medi 2016
|
9.3
|
10.9
|
Hydref 2016
|
9.6
|
9.8
|
Tachwedd 2016
|
8.7
|
8.3
|
Rhagfyr 2016
|
9.2
|
8.8
|
Ionawr 2017
|
8.3
|
7.2
|
Chwefror 2017
|
8.4
|
7.6
|
Mawrth 2017
|
5.9
|
6.1
|
Ebrill 2017
|
8.6
|
7.2
|
Mai 2017
|
7.7
|
6.9
|
Mehefin 2017
|
6.0
|
6.2
|
Gorffennaf 2017
|
6.9
|
6.4
|
Awst 2017
|
6.3
|
6.0
|
Medi 2017
|
6.1
|
5.4
|
Hydref 2017
|
6.2
|
6.2
|
Tachwedd 2017
|
4.8
|
5.4
|
Rhagfyr 2017
|
4.6
|
5.2
|
Ionawr 2018
|
5.0
|
5.5
|
Chwefror 2018
|
4.8
|
4.8
|
Mawrth 2018
|
4.1
|
4.7
|
Ebrill 2018
|
3.0
|
3.9
|
Mai 2018
|
3.5
|
2.8
|
Mehefin 2018
|
2.9
|
3.2
|
Gorffennaf 2018
|
3.5
|
2.8
|
Awst 2018
|
3.3
|
3.1
|
Medi 2018
|
2.1
|
2.4
|
Hydref 2018
|
2.0
|
1.8
|
Tachwedd 2018
|
3.5
|
2.8
|
Rhagfyr 2018
|
1.2
|
1.5
|
Ionawr 2019
|
1.4
|
0.3
|
Chwefror 2019
|
1.2
|
1.1
|
Mawrth 2019
|
0.6
|
0.8
|
Ebrill 2019
|
0.6
|
0.6
|
Mai 2019
|
0.4
|
0.5
|
Mehefin 2019
|
0.1
|
-0.2
|
Gorffennaf 2019
|
-1.1
|
-0.6
|
Awst 2019
|
-0.7
|
-0.9
|
Medi 2019
|
-0.5
|
-0.6
|
Hydref 2019
|
-1.0
|
0.1
|
Tachwedd 2019
|
-1.5
|
-1.0
|
Rhagfyr 2019
|
0.2
|
0.1
|
Ionawr 2020
|
-0.8
|
0.6
|
Dyddiad
|
Tai ar wahân
|
Tai pâr
|
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
|
-2.1
|
0.5
|
Mawrth 1995
|
-1.0
|
-1.0
|
Ebrill 1995
|
1.1
|
0.5
|
Mai 1995
|
-0.2
|
0.4
|
Mehefin 1995
|
-0.3
|
-0.6
|
Gorffennaf 1995
|
3.3
|
1.3
|
Awst 1995
|
-0.8
|
-0.9
|
Medi 1995
|
-1.7
|
-0.7
|
Hydref 1995
|
-0.8
|
-1.5
|
Tachwedd 1995
|
0.8
|
1.1
|
Rhagfyr 1995
|
-1.7
|
-0.3
|
Ionawr 1996
|
0.2
|
-1.4
|
Chwefror 1996
|
0.1
|
1.2
|
Mawrth 1996
|
0.1
|
-0.4
|
Ebrill 1996
|
1.3
|
0.6
|
Mai 1996
|
-0.4
|
0.8
|
Mehefin 1996
|
1.6
|
0.8
|
Gorffennaf 1996
|
1.6
|
0.8
|
Awst 1996
|
1.9
|
1.5
|
Medi 1996
|
-0.8
|
-0.7
|
Hydref 1996
|
0.5
|
0.4
|
Tachwedd 1996
|
0.4
|
1.2
|
Rhagfyr 1996
|
0.7
|
1.5
|
Ionawr 1997
|
1.1
|
-0.4
|
Chwefror 1997
|
1.1
|
1.2
|
Mawrth 1997
|
-0.4
|
0.0
|
Ebrill 1997
|
0.8
|
1.6
|
Mai 1997
|
2.0
|
2.4
|
Mehefin 1997
|
2.5
|
1.3
|
Gorffennaf 1997
|
2.4
|
2.3
|
Awst 1997
|
1.0
|
0.8
|
Medi 1997
|
0.5
|
0.4
|
Hydref 1997
|
1.8
|
1.8
|
Tachwedd 1997
|
-0.9
|
-0.8
|
Rhagfyr 1997
|
0.4
|
1.3
|
Ionawr 1998
|
2.4
|
0.0
|
Chwefror 1998
|
-2.0
|
0.4
|
Mawrth 1998
|
0.9
|
0.6
|
Ebrill 1998
|
2.8
|
2.3
|
Mai 1998
|
0.9
|
1.3
|
Mehefin 1998
|
1.0
|
0.4
|
Gorffennaf 1998
|
2.2
|
1.6
|
Awst 1998
|
0.1
|
-0.1
|
Medi 1998
|
0.7
|
0.8
|
Hydref 1998
|
-0.1
|
0.1
|
Tachwedd 1998
|
-0.6
|
-0.6
|
Rhagfyr 1998
|
-0.8
|
0.4
|
Ionawr 1999
|
1.6
|
1.0
|
Chwefror 1999
|
-0.4
|
0.1
|
Mawrth 1999
|
-0.3
|
-0.3
|
Ebrill 1999
|
2.3
|
2.2
|
Mai 1999
|
1.2
|
1.1
|
Mehefin 1999
|
2.2
|
1.8
|
Gorffennaf 1999
|
2.6
|
1.5
|
Awst 1999
|
1.5
|
1.3
|
Medi 1999
|
2.5
|
1.8
|
Hydref 1999
|
0.3
|
1.2
|
Tachwedd 1999
|
1.6
|
2.1
|
Rhagfyr 1999
|
1.3
|
1.9
|
Ionawr 2000
|
1.7
|
0.6
|
Chwefror 2000
|
-0.8
|
-0.5
|
Mawrth 2000
|
1.8
|
2.8
|
Ebrill 2000
|
3.8
|
3.5
|
Mai 2000
|
2.3
|
2.5
|
Mehefin 2000
|
0.0
|
0.6
|
Gorffennaf 2000
|
4.7
|
2.3
|
Awst 2000
|
0.6
|
1.3
|
Medi 2000
|
1.4
|
-0.0
|
Hydref 2000
|
-1.4
|
-0.1
|
Tachwedd 2000
|
0.8
|
-0.0
|
Rhagfyr 2000
|
0.1
|
1.3
|
Ionawr 2001
|
0.9
|
0.2
|
Chwefror 2001
|
-0.2
|
0.4
|
Mawrth 2001
|
1.0
|
1.2
|
Ebrill 2001
|
2.6
|
1.4
|
Mai 2001
|
1.1
|
2.4
|
Mehefin 2001
|
0.9
|
0.8
|
Gorffennaf 2001
|
3.4
|
2.3
|
Awst 2001
|
2.6
|
2.4
|
Medi 2001
|
1.1
|
0.2
|
Hydref 2001
|
0.4
|
1.4
|
Tachwedd 2001
|
0.1
|
1.2
|
Rhagfyr 2001
|
0.7
|
0.8
|
Ionawr 2002
|
1.9
|
0.7
|
Chwefror 2002
|
-0.2
|
0.6
|
Mawrth 2002
|
1.5
|
2.6
|
Ebrill 2002
|
4.1
|
3.2
|
Mai 2002
|
2.0
|
3.0
|
Mehefin 2002
|
1.0
|
0.9
|
Gorffennaf 2002
|
5.1
|
3.8
|
Awst 2002
|
2.0
|
2.7
|
Medi 2002
|
1.1
|
1.2
|
Hydref 2002
|
1.9
|
2.6
|
Tachwedd 2002
|
2.4
|
1.9
|
Rhagfyr 2002
|
-0.6
|
1.6
|
Ionawr 2003
|
3.4
|
1.3
|
Chwefror 2003
|
-1.0
|
0.8
|
Mawrth 2003
|
0.8
|
0.5
|
Ebrill 2003
|
1.8
|
2.4
|
Mai 2003
|
0.3
|
0.6
|
Mehefin 2003
|
-0.6
|
-0.6
|
Gorffennaf 2003
|
3.1
|
3.5
|
Awst 2003
|
0.7
|
0.1
|
Medi 2003
|
-0.3
|
-0.2
|
Hydref 2003
|
0.8
|
1.0
|
Tachwedd 2003
|
0.4
|
0.8
|
Rhagfyr 2003
|
-0.5
|
0.7
|
Ionawr 2004
|
2.7
|
1.2
|
Chwefror 2004
|
-0.9
|
0.4
|
Mawrth 2004
|
0.6
|
0.5
|
Ebrill 2004
|
1.2
|
3.0
|
Mai 2004
|
0.2
|
0.4
|
Mehefin 2004
|
2.2
|
1.9
|
Gorffennaf 2004
|
2.0
|
2.2
|
Awst 2004
|
1.5
|
0.8
|
Medi 2004
|
0.3
|
0.2
|
Hydref 2004
|
0.0
|
0.4
|
Tachwedd 2004
|
-0.2
|
-0.1
|
Rhagfyr 2004
|
-1.3
|
-0.8
|
Ionawr 2005
|
1.3
|
0.2
|
Chwefror 2005
|
-1.9
|
-0.4
|
Mawrth 2005
|
-0.2
|
-0.2
|
Ebrill 2005
|
0.2
|
0.8
|
Mai 2005
|
2.4
|
0.9
|
Mehefin 2005
|
-0.6
|
0.7
|
Gorffennaf 2005
|
1.5
|
1.2
|
Awst 2005
|
0.4
|
-1.0
|
Medi 2005
|
-0.5
|
0.3
|
Hydref 2005
|
-0.4
|
-0.6
|
Tachwedd 2005
|
-0.2
|
0.0
|
Rhagfyr 2005
|
-0.7
|
0.2
|
Ionawr 2006
|
1.0
|
0.1
|
Chwefror 2006
|
-0.8
|
-0.0
|
Mawrth 2006
|
1.3
|
1.0
|
Ebrill 2006
|
1.2
|
1.7
|
Mai 2006
|
1.1
|
0.8
|
Mehefin 2006
|
-0.3
|
0.3
|
Gorffennaf 2006
|
2.5
|
2.0
|
Awst 2006
|
1.4
|
0.8
|
Medi 2006
|
-0.1
|
0.2
|
Hydref 2006
|
0.4
|
0.6
|
Tachwedd 2006
|
0.6
|
0.6
|
Rhagfyr 2006
|
-0.1
|
0.8
|
Ionawr 2007
|
1.0
|
0.2
|
Chwefror 2007
|
-0.6
|
0.1
|
Mawrth 2007
|
0.9
|
1.0
|
Ebrill 2007
|
1.2
|
1.1
|
Mai 2007
|
0.4
|
0.8
|
Mehefin 2007
|
2.3
|
1.7
|
Gorffennaf 2007
|
1.9
|
1.0
|
Awst 2007
|
0.9
|
0.7
|
Medi 2007
|
0.0
|
0.3
|
Hydref 2007
|
0.1
|
-0.4
|
Tachwedd 2007
|
0.5
|
0.6
|
Rhagfyr 2007
|
-0.8
|
-0.3
|
Ionawr 2008
|
0.0
|
-0.9
|
Chwefror 2008
|
-0.8
|
-0.6
|
Mawrth 2008
|
-1.9
|
-0.9
|
Ebrill 2008
|
0.1
|
-1.0
|
Mai 2008
|
0.4
|
1.5
|
Mehefin 2008
|
-1.6
|
-1.6
|
Gorffennaf 2008
|
0.3
|
-0.4
|
Awst 2008
|
-3.3
|
-3.7
|
Medi 2008
|
-1.0
|
-2.8
|
Hydref 2008
|
-3.6
|
-2.4
|
Tachwedd 2008
|
-3.1
|
-2.4
|
Rhagfyr 2008
|
-1.7
|
-1.6
|
Ionawr 2009
|
0.7
|
-1.0
|
Chwefror 2009
|
-3.2
|
-1.5
|
Mawrth 2009
|
-1.3
|
-2.4
|
Ebrill 2009
|
0.6
|
2.1
|
Mai 2009
|
1.7
|
1.9
|
Mehefin 2009
|
0.4
|
-0.2
|
Gorffennaf 2009
|
3.2
|
2.8
|
Awst 2009
|
1.1
|
1.3
|
Medi 2009
|
1.2
|
1.1
|
Hydref 2009
|
-0.1
|
0.6
|
Tachwedd 2009
|
1.0
|
0.3
|
Rhagfyr 2009
|
-0.6
|
1.1
|
Ionawr 2010
|
3.9
|
1.3
|
Chwefror 2010
|
-0.4
|
0.2
|
Mawrth 2010
|
-0.1
|
-0.4
|
Ebrill 2010
|
1.1
|
2.1
|
Mai 2010
|
0.8
|
0.1
|
Mehefin 2010
|
-0.8
|
-0.1
|
Gorffennaf 2010
|
3.3
|
1.7
|
Awst 2010
|
-0.3
|
0.1
|
Medi 2010
|
-0.0
|
-0.2
|
Hydref 2010
|
-1.4
|
-1.3
|
Tachwedd 2010
|
-0.1
|
-0.4
|
Rhagfyr 2010
|
-1.1
|
-0.3
|
Ionawr 2011
|
0.7
|
-1.0
|
Chwefror 2011
|
-1.6
|
-1.3
|
Mawrth 2011
|
1.0
|
0.5
|
Ebrill 2011
|
-0.2
|
0.7
|
Mai 2011
|
-0.4
|
0.3
|
Mehefin 2011
|
-0.8
|
0.1
|
Gorffennaf 2011
|
2.0
|
1.0
|
Awst 2011
|
1.4
|
0.9
|
Medi 2011
|
-1.0
|
-1.3
|
Hydref 2011
|
0.1
|
0.2
|
Tachwedd 2011
|
-0.1
|
0.4
|
Rhagfyr 2011
|
-0.8
|
-0.1
|
Ionawr 2012
|
1.0
|
0.7
|
Chwefror 2012
|
-1.1
|
-1.0
|
Mawrth 2012
|
-2.0
|
-0.5
|
Ebrill 2012
|
3.2
|
1.6
|
Mai 2012
|
0.3
|
0.7
|
Mehefin 2012
|
-0.5
|
-0.2
|
Gorffennaf 2012
|
2.0
|
1.2
|
Awst 2012
|
-0.2
|
0.3
|
Medi 2012
|
-0.6
|
-1.0
|
Hydref 2012
|
0.5
|
0.6
|
Tachwedd 2012
|
-0.7
|
-0.5
|
Rhagfyr 2012
|
-0.1
|
-0.5
|
Ionawr 2013
|
0.0
|
0.7
|
Chwefror 2013
|
-1.2
|
-1.3
|
Mawrth 2013
|
2.5
|
1.6
|
Ebrill 2013
|
-0.4
|
0.6
|
Mai 2013
|
-0.7
|
-0.3
|
Mehefin 2013
|
1.3
|
1.0
|
Gorffennaf 2013
|
1.8
|
1.5
|
Awst 2013
|
0.7
|
0.7
|
Medi 2013
|
0.4
|
-0.5
|
Hydref 2013
|
0.7
|
1.1
|
Tachwedd 2013
|
-1.0
|
-0.2
|
Rhagfyr 2013
|
1.4
|
2.1
|
Ionawr 2014
|
0.4
|
-1.0
|
Chwefror 2014
|
0.6
|
0.9
|
Mawrth 2014
|
-0.2
|
0.7
|
Ebrill 2014
|
2.2
|
1.7
|
Mai 2014
|
1.3
|
1.9
|
Mehefin 2014
|
1.0
|
1.0
|
Gorffennaf 2014
|
2.0
|
1.5
|
Awst 2014
|
1.2
|
1.2
|
Medi 2014
|
0.9
|
0.7
|
Hydref 2014
|
0.4
|
0.7
|
Tachwedd 2014
|
-0.5
|
-0.4
|
Rhagfyr 2014
|
0.3
|
0.3
|
Ionawr 2015
|
0.6
|
0.6
|
Chwefror 2015
|
0.5
|
0.2
|
Mawrth 2015
|
0.3
|
0.4
|
Ebrill 2015
|
0.5
|
0.8
|
Mai 2015
|
1.1
|
1.7
|
Mehefin 2015
|
0.2
|
0.6
|
Gorffennaf 2015
|
2.8
|
2.4
|
Awst 2015
|
1.1
|
1.1
|
Medi 2015
|
1.9
|
0.7
|
Hydref 2015
|
-0.1
|
0.9
|
Tachwedd 2015
|
1.3
|
1.4
|
Rhagfyr 2015
|
0.4
|
0.3
|
Ionawr 2016
|
0.5
|
1.5
|
Chwefror 2016
|
0.2
|
-0.3
|
Mawrth 2016
|
2.2
|
1.1
|
Ebrill 2016
|
-1.2
|
0.4
|
Mai 2016
|
1.0
|
1.6
|
Mehefin 2016
|
2.4
|
0.9
|
Gorffennaf 2016
|
0.7
|
1.6
|
Awst 2016
|
0.4
|
0.1
|
Medi 2016
|
1.2
|
0.9
|
Hydref 2016
|
0.2
|
-0.2
|
Tachwedd 2016
|
0.4
|
0.1
|
Rhagfyr 2016
|
0.9
|
0.7
|
Ionawr 2017
|
-0.3
|
0.1
|
Chwefror 2017
|
0.3
|
0.1
|
Mawrth 2017
|
-0.2
|
-0.3
|
Ebrill 2017
|
1.3
|
1.4
|
Mai 2017
|
0.1
|
1.3
|
Mehefin 2017
|
0.8
|
0.2
|
Gorffennaf 2017
|
1.6
|
1.8
|
Awst 2017
|
-0.1
|
-0.3
|
Medi 2017
|
1.0
|
0.3
|
Hydref 2017
|
0.3
|
0.6
|
Tachwedd 2017
|
-1.0
|
-0.6
|
Rhagfyr 2017
|
0.7
|
0.5
|
Ionawr 2018
|
0.1
|
0.4
|
Chwefror 2018
|
0.1
|
-0.6
|
Mawrth 2018
|
-0.8
|
-0.4
|
Ebrill 2018
|
0.2
|
0.6
|
Mai 2018
|
0.6
|
0.2
|
Mehefin 2018
|
0.2
|
0.6
|
Gorffennaf 2018
|
2.1
|
1.4
|
Awst 2018
|
-0.3
|
0.1
|
Medi 2018
|
-0.1
|
-0.3
|
Hydref 2018
|
0.2
|
0.0
|
Tachwedd 2018
|
0.4
|
0.3
|
Rhagfyr 2018
|
-1.6
|
-0.8
|
Ionawr 2019
|
0.4
|
-0.7
|
Chwefror 2019
|
-0.1
|
0.2
|
Mawrth 2019
|
-1.4
|
-0.7
|
Ebrill 2019
|
0.3
|
0.4
|
Mai 2019
|
0.4
|
0.2
|
Mehefin 2019
|
-0.2
|
-0.2
|
Gorffennaf 2019
|
0.9
|
1.0
|
Awst 2019
|
0.1
|
-0.3
|
Medi 2019
|
0.1
|
0.0
|
Hydref 2019
|
-0.3
|
0.7
|
Tachwedd 2019
|
-0.0
|
-0.8
|
Rhagfyr 2019
|
0.1
|
0.3
|
Ionawr 2020
|
-0.7
|
-0.2
|
Dyddiad
|
Tai ar wahân
|
Tai pâr
|
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
|
25.9
|
24.5
|
Chwefror 1995
|
25.4
|
24.6
|
Mawrth 1995
|
25.1
|
24.4
|
Ebrill 1995
|
25.4
|
24.5
|
Mai 1995
|
25.3
|
24.6
|
Mehefin 1995
|
25.2
|
24.5
|
Gorffennaf 1995
|
26.1
|
24.8
|
Awst 1995
|
25.9
|
24.6
|
Medi 1995
|
25.4
|
24.4
|
Hydref 1995
|
25.2
|
24.1
|
Tachwedd 1995
|
25.4
|
24.3
|
Rhagfyr 1995
|
25.0
|
24.2
|
Ionawr 1996
|
25.0
|
23.9
|
Chwefror 1996
|
25.0
|
24.2
|
Mawrth 1996
|
25.1
|
24.1
|
Ebrill 1996
|
25.4
|
24.2
|
Mai 1996
|
25.3
|
24.4
|
Mehefin 1996
|
25.7
|
24.6
|
Gorffennaf 1996
|
26.1
|
24.8
|
Awst 1996
|
26.6
|
25.2
|
Medi 1996
|
26.4
|
25.0
|
Hydref 1996
|
26.5
|
25.1
|
Tachwedd 1996
|
26.6
|
25.4
|
Rhagfyr 1996
|
26.8
|
25.8
|
Ionawr 1997
|
27.1
|
25.6
|
Chwefror 1997
|
27.4
|
25.9
|
Mawrth 1997
|
27.3
|
25.9
|
Ebrill 1997
|
27.5
|
26.4
|
Mai 1997
|
28.0
|
27.0
|
Mehefin 1997
|
28.8
|
27.3
|
Gorffennaf 1997
|
29.4
|
28.0
|
Awst 1997
|
29.7
|
28.2
|
Medi 1997
|
29.9
|
28.3
|
Hydref 1997
|
30.4
|
28.8
|
Tachwedd 1997
|
30.1
|
28.6
|
Rhagfyr 1997
|
30.3
|
29.0
|
Ionawr 1998
|
31.0
|
29.0
|
Chwefror 1998
|
30.4
|
29.1
|
Mawrth 1998
|
30.6
|
29.2
|
Ebrill 1998
|
31.5
|
29.9
|
Mai 1998
|
31.8
|
30.3
|
Mehefin 1998
|
32.1
|
30.4
|
Gorffennaf 1998
|
32.8
|
30.9
|
Awst 1998
|
32.8
|
30.9
|
Medi 1998
|
33.1
|
31.1
|
Hydref 1998
|
33.0
|
31.1
|
Tachwedd 1998
|
32.8
|
31.0
|
Rhagfyr 1998
|
32.6
|
31.1
|
Ionawr 1999
|
33.1
|
31.4
|
Chwefror 1999
|
33.0
|
31.4
|
Mawrth 1999
|
32.9
|
31.4
|
Ebrill 1999
|
33.6
|
32.0
|
Mai 1999
|
34.0
|
32.4
|
Mehefin 1999
|
34.7
|
33.0
|
Gorffennaf 1999
|
35.6
|
33.4
|
Awst 1999
|
36.2
|
33.9
|
Medi 1999
|
37.1
|
34.5
|
Hydref 1999
|
37.2
|
34.9
|
Tachwedd 1999
|
37.8
|
35.7
|
Rhagfyr 1999
|
38.2
|
36.4
|
Ionawr 2000
|
38.9
|
36.6
|
Chwefror 2000
|
38.6
|
36.4
|
Mawrth 2000
|
39.3
|
37.4
|
Ebrill 2000
|
40.8
|
38.7
|
Mai 2000
|
41.7
|
39.7
|
Mehefin 2000
|
41.7
|
39.9
|
Gorffennaf 2000
|
43.7
|
40.8
|
Awst 2000
|
44.0
|
41.4
|
Medi 2000
|
44.6
|
41.4
|
Hydref 2000
|
43.9
|
41.3
|
Tachwedd 2000
|
44.3
|
41.3
|
Rhagfyr 2000
|
44.3
|
41.8
|
Ionawr 2001
|
44.7
|
41.9
|
Chwefror 2001
|
44.6
|
42.1
|
Mawrth 2001
|
45.1
|
42.6
|
Ebrill 2001
|
46.2
|
43.2
|
Mai 2001
|
46.8
|
44.2
|
Mehefin 2001
|
47.2
|
44.6
|
Gorffennaf 2001
|
48.8
|
45.6
|
Awst 2001
|
50.1
|
46.7
|
Medi 2001
|
50.7
|
46.8
|
Hydref 2001
|
50.9
|
47.5
|
Tachwedd 2001
|
50.9
|
48.0
|
Rhagfyr 2001
|
51.3
|
48.4
|
Ionawr 2002
|
52.3
|
48.8
|
Chwefror 2002
|
52.2
|
49.0
|
Mawrth 2002
|
53.0
|
50.3
|
Ebrill 2002
|
55.2
|
51.9
|
Mai 2002
|
56.2
|
53.5
|
Mehefin 2002
|
56.8
|
53.9
|
Gorffennaf 2002
|
59.7
|
56.0
|
Awst 2002
|
60.9
|
57.5
|
Medi 2002
|
61.5
|
58.2
|
Hydref 2002
|
62.7
|
59.7
|
Tachwedd 2002
|
64.2
|
60.9
|
Rhagfyr 2002
|
63.8
|
61.8
|
Ionawr 2003
|
66.0
|
62.6
|
Chwefror 2003
|
65.4
|
63.1
|
Mawrth 2003
|
65.9
|
63.4
|
Ebrill 2003
|
67.1
|
65.0
|
Mai 2003
|
67.3
|
65.4
|
Mehefin 2003
|
66.9
|
65.0
|
Gorffennaf 2003
|
68.9
|
67.2
|
Awst 2003
|
69.4
|
67.3
|
Medi 2003
|
69.2
|
67.1
|
Hydref 2003
|
69.7
|
67.8
|
Tachwedd 2003
|
70.0
|
68.3
|
Rhagfyr 2003
|
69.6
|
68.8
|
Ionawr 2004
|
71.6
|
69.6
|
Chwefror 2004
|
70.9
|
69.8
|
Mawrth 2004
|
71.3
|
70.2
|
Ebrill 2004
|
72.2
|
72.3
|
Mai 2004
|
72.3
|
72.6
|
Mehefin 2004
|
73.9
|
74.0
|
Gorffennaf 2004
|
75.4
|
75.6
|
Awst 2004
|
76.6
|
76.2
|
Medi 2004
|
76.8
|
76.4
|
Hydref 2004
|
76.8
|
76.6
|
Tachwedd 2004
|
76.6
|
76.6
|
Rhagfyr 2004
|
75.7
|
76.0
|
Ionawr 2005
|
76.6
|
76.1
|
Chwefror 2005
|
75.2
|
75.8
|
Mawrth 2005
|
75.0
|
75.7
|
Ebrill 2005
|
75.1
|
76.3
|
Mai 2005
|
77.0
|
77.0
|
Mehefin 2005
|
76.5
|
77.5
|
Gorffennaf 2005
|
77.6
|
78.4
|
Awst 2005
|
77.9
|
77.6
|
Medi 2005
|
77.6
|
77.9
|
Hydref 2005
|
77.3
|
77.4
|
Tachwedd 2005
|
77.2
|
77.4
|
Rhagfyr 2005
|
76.6
|
77.6
|
Ionawr 2006
|
77.4
|
77.7
|
Chwefror 2006
|
76.8
|
77.7
|
Mawrth 2006
|
77.8
|
78.4
|
Ebrill 2006
|
78.7
|
79.8
|
Mai 2006
|
79.6
|
80.4
|
Mehefin 2006
|
79.4
|
80.6
|
Gorffennaf 2006
|
81.3
|
82.2
|
Awst 2006
|
82.5
|
82.8
|
Medi 2006
|
82.5
|
83.0
|
Hydref 2006
|
82.8
|
83.4
|
Tachwedd 2006
|
83.3
|
83.9
|
Rhagfyr 2006
|
83.3
|
84.6
|
Ionawr 2007
|
84.1
|
84.7
|
Chwefror 2007
|
83.6
|
84.8
|
Mawrth 2007
|
84.4
|
85.6
|
Ebrill 2007
|
85.4
|
86.6
|
Mai 2007
|
85.7
|
87.3
|
Mehefin 2007
|
87.6
|
88.8
|
Gorffennaf 2007
|
89.3
|
89.7
|
Awst 2007
|
90.2
|
90.3
|
Medi 2007
|
90.2
|
90.6
|
Hydref 2007
|
90.3
|
90.2
|
Tachwedd 2007
|
90.7
|
90.7
|
Rhagfyr 2007
|
90.0
|
90.5
|
Ionawr 2008
|
90.0
|
89.7
|
Chwefror 2008
|
89.3
|
89.1
|
Mawrth 2008
|
87.6
|
88.3
|
Ebrill 2008
|
87.6
|
87.4
|
Mai 2008
|
88.0
|
88.7
|
Mehefin 2008
|
86.6
|
87.3
|
Gorffennaf 2008
|
86.9
|
87.0
|
Awst 2008
|
84.0
|
83.7
|
Medi 2008
|
83.2
|
81.4
|
Hydref 2008
|
80.2
|
79.4
|
Tachwedd 2008
|
77.7
|
77.6
|
Rhagfyr 2008
|
76.4
|
76.3
|
Ionawr 2009
|
76.9
|
75.6
|
Chwefror 2009
|
74.5
|
74.4
|
Mawrth 2009
|
73.5
|
72.6
|
Ebrill 2009
|
73.9
|
74.1
|
Mai 2009
|
75.2
|
75.5
|
Mehefin 2009
|
75.5
|
75.4
|
Gorffennaf 2009
|
77.9
|
77.5
|
Awst 2009
|
78.8
|
78.5
|
Medi 2009
|
79.7
|
79.3
|
Hydref 2009
|
79.7
|
79.8
|
Tachwedd 2009
|
80.5
|
80.0
|
Rhagfyr 2009
|
80.0
|
80.9
|
Ionawr 2010
|
83.1
|
82.0
|
Chwefror 2010
|
82.8
|
82.2
|
Mawrth 2010
|
82.8
|
81.9
|
Ebrill 2010
|
83.7
|
83.6
|
Mai 2010
|
84.4
|
83.6
|
Mehefin 2010
|
83.6
|
83.6
|
Gorffennaf 2010
|
86.4
|
85.0
|
Awst 2010
|
86.1
|
85.1
|
Medi 2010
|
86.1
|
84.9
|
Hydref 2010
|
84.8
|
83.8
|
Tachwedd 2010
|
84.8
|
83.4
|
Rhagfyr 2010
|
83.8
|
83.1
|
Ionawr 2011
|
84.4
|
82.3
|
Chwefror 2011
|
83.1
|
81.3
|
Mawrth 2011
|
84.0
|
81.7
|
Ebrill 2011
|
83.8
|
82.2
|
Mai 2011
|
83.5
|
82.5
|
Mehefin 2011
|
82.8
|
82.6
|
Gorffennaf 2011
|
84.4
|
83.5
|
Awst 2011
|
85.6
|
84.2
|
Medi 2011
|
84.8
|
83.1
|
Hydref 2011
|
84.8
|
83.2
|
Tachwedd 2011
|
84.8
|
83.6
|
Rhagfyr 2011
|
84.2
|
83.4
|
Ionawr 2012
|
85.0
|
84.1
|
Chwefror 2012
|
84.0
|
83.2
|
Mawrth 2012
|
82.3
|
82.8
|
Ebrill 2012
|
85.0
|
84.0
|
Mai 2012
|
85.2
|
84.6
|
Mehefin 2012
|
84.8
|
84.5
|
Gorffennaf 2012
|
86.5
|
85.5
|
Awst 2012
|
86.3
|
85.8
|
Medi 2012
|
85.8
|
84.9
|
Hydref 2012
|
86.2
|
85.5
|
Tachwedd 2012
|
85.6
|
85.1
|
Rhagfyr 2012
|
85.6
|
84.6
|
Ionawr 2013
|
85.6
|
85.2
|
Chwefror 2013
|
84.6
|
84.1
|
Mawrth 2013
|
86.7
|
85.5
|
Ebrill 2013
|
86.4
|
86.0
|
Mai 2013
|
85.8
|
85.7
|
Mehefin 2013
|
86.8
|
86.6
|
Gorffennaf 2013
|
88.4
|
87.9
|
Awst 2013
|
89.0
|
88.6
|
Medi 2013
|
89.4
|
88.1
|
Hydref 2013
|
90.0
|
89.0
|
Tachwedd 2013
|
89.1
|
88.8
|
Rhagfyr 2013
|
90.3
|
90.7
|
Ionawr 2014
|
90.7
|
89.8
|
Chwefror 2014
|
91.2
|
90.6
|
Mawrth 2014
|
91.1
|
91.3
|
Ebrill 2014
|
93.1
|
92.9
|
Mai 2014
|
94.3
|
94.6
|
Mehefin 2014
|
95.2
|
95.6
|
Gorffennaf 2014
|
97.1
|
97.1
|
Awst 2014
|
98.3
|
98.2
|
Medi 2014
|
99.2
|
98.9
|
Hydref 2014
|
99.5
|
99.5
|
Tachwedd 2014
|
99.0
|
99.1
|
Rhagfyr 2014
|
99.4
|
99.4
|
Ionawr 2015
|
100.0
|
100.0
|
Chwefror 2015
|
100.5
|
100.2
|
Mawrth 2015
|
100.8
|
100.6
|
Ebrill 2015
|
101.4
|
101.4
|
Mai 2015
|
102.5
|
103.1
|
Mehefin 2015
|
102.7
|
103.6
|
Gorffennaf 2015
|
105.6
|
106.1
|
Awst 2015
|
106.7
|
107.3
|
Medi 2015
|
108.7
|
108.1
|
Hydref 2015
|
108.6
|
109.1
|
Tachwedd 2015
|
110.0
|
110.6
|
Rhagfyr 2015
|
110.5
|
111.0
|
Ionawr 2016
|
111.1
|
112.6
|
Chwefror 2016
|
111.3
|
112.3
|
Mawrth 2016
|
113.7
|
113.6
|
Ebrill 2016
|
112.3
|
114.0
|
Mai 2016
|
113.4
|
115.9
|
Mehefin 2016
|
116.2
|
116.9
|
Gorffennaf 2016
|
117.0
|
118.8
|
Awst 2016
|
117.4
|
118.9
|
Medi 2016
|
118.9
|
119.9
|
Hydref 2016
|
119.1
|
119.7
|
Tachwedd 2016
|
119.6
|
119.8
|
Rhagfyr 2016
|
120.6
|
120.7
|
Ionawr 2017
|
120.3
|
120.8
|
Chwefror 2017
|
120.7
|
120.9
|
Mawrth 2017
|
120.4
|
120.6
|
Ebrill 2017
|
122.0
|
122.2
|
Mai 2017
|
122.2
|
123.8
|
Mehefin 2017
|
123.1
|
124.1
|
Gorffennaf 2017
|
125.0
|
126.3
|
Awst 2017
|
124.8
|
126.0
|
Medi 2017
|
126.2
|
126.4
|
Hydref 2017
|
126.5
|
127.1
|
Tachwedd 2017
|
125.3
|
126.3
|
Rhagfyr 2017
|
126.1
|
126.9
|
Ionawr 2018
|
126.3
|
127.4
|
Chwefror 2018
|
126.4
|
126.7
|
Mawrth 2018
|
125.4
|
126.2
|
Ebrill 2018
|
125.7
|
127.0
|
Mai 2018
|
126.4
|
127.4
|
Mehefin 2018
|
126.6
|
128.1
|
Gorffennaf 2018
|
129.3
|
129.8
|
Awst 2018
|
128.9
|
129.9
|
Medi 2018
|
128.8
|
129.4
|
Hydref 2018
|
129.0
|
129.5
|
Tachwedd 2018
|
129.6
|
129.9
|
Rhagfyr 2018
|
127.6
|
128.8
|
Ionawr 2019
|
128.0
|
127.9
|
Chwefror 2019
|
127.9
|
128.1
|
Mawrth 2019
|
126.1
|
127.2
|
Ebrill 2019
|
126.5
|
127.8
|
Mai 2019
|
127.0
|
128.0
|
Mehefin 2019
|
126.8
|
127.8
|
Gorffennaf 2019
|
127.9
|
129.0
|
Awst 2019
|
128.0
|
128.7
|
Medi 2019
|
128.1
|
128.7
|
Hydref 2019
|
127.8
|
129.6
|
Tachwedd 2019
|
127.7
|
128.6
|
Rhagfyr 2019
|
127.9
|
128.9
|
Ionawr 2020
|
127.0
|
128.7
|
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
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
|
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
|
Chwefror 1995
|
68360.0
|
Mawrth 1995
|
68195.0
|
Ebrill 1995
|
67631.0
|
Mai 1995
|
68027.0
|
Mehefin 1995
|
68046.0
|
Gorffennaf 1995
|
68694.0
|
Awst 1995
|
68258.0
|
Medi 1995
|
66909.0
|
Hydref 1995
|
67233.0
|
Tachwedd 1995
|
68019.0
|
Rhagfyr 1995
|
68042.0
|
Ionawr 1996
|
68370.0
|
Chwefror 1996
|
68892.0
|
Mawrth 1996
|
68083.0
|
Ebrill 1996
|
68655.0
|
Mai 1996
|
67894.0
|
Mehefin 1996
|
69728.0
|
Gorffennaf 1996
|
69639.0
|
Awst 1996
|
70590.0
|
Medi 1996
|
69919.0
|
Hydref 1996
|
70490.0
|
Tachwedd 1996
|
71022.0
|
Rhagfyr 1996
|
71392.0
|
Ionawr 1997
|
71480.0
|
Chwefror 1997
|
72645.0
|
Mawrth 1997
|
72654.0
|
Ebrill 1997
|
72678.0
|
Mai 1997
|
74055.0
|
Mehefin 1997
|
74854.0
|
Gorffennaf 1997
|
76059.0
|
Awst 1997
|
76475.0
|
Medi 1997
|
77887.0
|
Hydref 1997
|
78497.0
|
Tachwedd 1997
|
78300.0
|
Rhagfyr 1997
|
79837.0
|
Ionawr 1998
|
81387.0
|
Chwefror 1998
|
81940.0
|
Mawrth 1998
|
81694.0
|
Ebrill 1998
|
83310.0
|
Mai 1998
|
83440.0
|
Mehefin 1998
|
84719.0
|
Gorffennaf 1998
|
85304.0
|
Awst 1998
|
86046.0
|
Medi 1998
|
85389.0
|
Hydref 1998
|
86529.0
|
Tachwedd 1998
|
86371.0
|
Rhagfyr 1998
|
87012.0
|
Ionawr 1999
|
88410.0
|
Chwefror 1999
|
87928.0
|
Mawrth 1999
|
87658.0
|
Ebrill 1999
|
88239.0
|
Mai 1999
|
90683.0
|
Mehefin 1999
|
92080.0
|
Gorffennaf 1999
|
93277.0
|
Awst 1999
|
94032.0
|
Medi 1999
|
95579.0
|
Hydref 1999
|
96729.0
|
Tachwedd 1999
|
98316.0
|
Rhagfyr 1999
|
102144.0
|
Ionawr 2000
|
101749.0
|
Chwefror 2000
|
102305.0
|
Mawrth 2000
|
103913.0
|
Ebrill 2000
|
107311.0
|
Mai 2000
|
109923.0
|
Mehefin 2000
|
109446.0
|
Gorffennaf 2000
|
112920.0
|
Awst 2000
|
115456.0
|
Medi 2000
|
115374.0
|
Hydref 2000
|
114150.0
|
Tachwedd 2000
|
116453.0
|
Rhagfyr 2000
|
117943.0
|
Ionawr 2001
|
120033.0
|
Chwefror 2001
|
121451.0
|
Mawrth 2001
|
121291.0
|
Ebrill 2001
|
123611.0
|
Mai 2001
|
123102.0
|
Mehefin 2001
|
127170.0
|
Gorffennaf 2001
|
128266.0
|
Awst 2001
|
133269.0
|
Medi 2001
|
135800.0
|
Hydref 2001
|
136547.0
|
Tachwedd 2001
|
136953.0
|
Rhagfyr 2001
|
140304.0
|
Ionawr 2002
|
141467.0
|
Chwefror 2002
|
145023.0
|
Mawrth 2002
|
144777.0
|
Ebrill 2002
|
150372.0
|
Mai 2002
|
152299.0
|
Mehefin 2002
|
155118.0
|
Gorffennaf 2002
|
158397.0
|
Awst 2002
|
163033.0
|
Medi 2002
|
162169.0
|
Hydref 2002
|
166681.0
|
Tachwedd 2002
|
169556.0
|
Rhagfyr 2002
|
171412.0
|
Ionawr 2003
|
172698.0
|
Chwefror 2003
|
175430.0
|
Mawrth 2003
|
177676.0
|
Ebrill 2003
|
179929.0
|
Mai 2003
|
179767.0
|
Mehefin 2003
|
182036.0
|
Gorffennaf 2003
|
185561.0
|
Awst 2003
|
184818.0
|
Medi 2003
|
183736.0
|
Hydref 2003
|
185919.0
|
Tachwedd 2003
|
186689.0
|
Rhagfyr 2003
|
188414.0
|
Ionawr 2004
|
192722.0
|
Chwefror 2004
|
195465.0
|
Mawrth 2004
|
195836.0
|
Ebrill 2004
|
194338.0
|
Mai 2004
|
199185.0
|
Mehefin 2004
|
205331.0
|
Gorffennaf 2004
|
200346.0
|
Awst 2004
|
204378.0
|
Medi 2004
|
207086.0
|
Hydref 2004
|
208388.0
|
Tachwedd 2004
|
210810.0
|
Rhagfyr 2004
|
211329.0
|
Ionawr 2005
|
215241.0
|
Chwefror 2005
|
215309.0
|
Mawrth 2005
|
214963.0
|
Ebrill 2005
|
216972.0
|
Mai 2005
|
218958.0
|
Mehefin 2005
|
219431.0
|
Gorffennaf 2005
|
220061.0
|
Awst 2005
|
220237.0
|
Medi 2005
|
220298.0
|
Hydref 2005
|
220651.0
|
Tachwedd 2005
|
220788.0
|
Rhagfyr 2005
|
224157.0
|
Ionawr 2006
|
221491.0
|
Chwefror 2006
|
225185.0
|
Mawrth 2006
|
225262.0
|
Ebrill 2006
|
227473.0
|
Mai 2006
|
229407.0
|
Mehefin 2006
|
228053.0
|
Gorffennaf 2006
|
230358.0
|
Awst 2006
|
229637.0
|
Medi 2006
|
231489.0
|
Hydref 2006
|
233670.0
|
Tachwedd 2006
|
231858.0
|
Rhagfyr 2006
|
237329.0
|
Ionawr 2007
|
237081.0
|
Chwefror 2007
|
237533.0
|
Mawrth 2007
|
236826.0
|
Ebrill 2007
|
239233.0
|
Mai 2007
|
246713.0
|
Mehefin 2007
|
246280.0
|
Gorffennaf 2007
|
250349.0
|
Awst 2007
|
245244.0
|
Medi 2007
|
248366.0
|
Hydref 2007
|
250413.0
|
Tachwedd 2007
|
249834.0
|
Rhagfyr 2007
|
251681.0
|
Ionawr 2008
|
250569.0
|
Chwefror 2008
|
253434.0
|
Mawrth 2008
|
247997.0
|
Ebrill 2008
|
246340.0
|
Mai 2008
|
247516.0
|
Mehefin 2008
|
242751.0
|
Gorffennaf 2008
|
241054.0
|
Awst 2008
|
227550.0
|
Medi 2008
|
224987.0
|
Hydref 2008
|
218660.0
|
Tachwedd 2008
|
213468.0
|
Rhagfyr 2008
|
208090.0
|
Ionawr 2009
|
212939.0
|
Chwefror 2009
|
208012.0
|
Mawrth 2009
|
204861.0
|
Ebrill 2009
|
206564.0
|
Mai 2009
|
208847.0
|
Mehefin 2009
|
206299.0
|
Gorffennaf 2009
|
211482.0
|
Awst 2009
|
210989.0
|
Medi 2009
|
216196.0
|
Hydref 2009
|
213899.0
|
Tachwedd 2009
|
214483.0
|
Rhagfyr 2009
|
215825.0
|
Ionawr 2010
|
210747.0
|
Chwefror 2010
|
219426.0
|
Mawrth 2010
|
220147.0
|
Ebrill 2010
|
218986.0
|
Mai 2010
|
220483.0
|
Mehefin 2010
|
220207.0
|
Gorffennaf 2010
|
219796.0
|
Awst 2010
|
222453.0
|
Medi 2010
|
226349.0
|
Hydref 2010
|
224497.0
|
Tachwedd 2010
|
221707.0
|
Rhagfyr 2010
|
225667.0
|
Ionawr 2011
|
223548.0
|
Chwefror 2011
|
220905.0
|
Mawrth 2011
|
227037.0
|
Ebrill 2011
|
225754.0
|
Mai 2011
|
226838.0
|
Mehefin 2011
|
222652.0
|
Gorffennaf 2011
|
228797.0
|
Awst 2011
|
225300.0
|
Medi 2011
|
223681.0
|
Hydref 2011
|
225603.0
|
Tachwedd 2011
|
228439.0
|
Rhagfyr 2011
|
225473.0
|
Ionawr 2012
|
224854.0
|
Chwefror 2012
|
224629.0
|
Mawrth 2012
|
225556.0
|
Ebrill 2012
|
227992.0
|
Mai 2012
|
228797.0
|
Mehefin 2012
|
226940.0
|
Gorffennaf 2012
|
226065.0
|
Awst 2012
|
226688.0
|
Medi 2012
|
227572.0
|
Hydref 2012
|
233356.0
|
Tachwedd 2012
|
233120.0
|
Rhagfyr 2012
|
232995.0
|
Ionawr 2013
|
227319.0
|
Chwefror 2013
|
226009.0
|
Mawrth 2013
|
235310.0
|
Ebrill 2013
|
235586.0
|
Mai 2013
|
232933.0
|
Mehefin 2013
|
233668.0
|
Gorffennaf 2013
|
235928.0
|
Awst 2013
|
237214.0
|
Medi 2013
|
239893.0
|
Hydref 2013
|
242781.0
|
Tachwedd 2013
|
241957.0
|
Rhagfyr 2013
|
250596.0
|
Ionawr 2014
|
244741.0
|
Chwefror 2014
|
249860.0
|
Mawrth 2014
|
250473.0
|
Ebrill 2014
|
255765.0
|
Mai 2014
|
262901.0
|
Mehefin 2014
|
261547.0
|
Gorffennaf 2014
|
263297.0
|
Awst 2014
|
264077.0
|
Medi 2014
|
266237.0
|
Hydref 2014
|
269348.0
|
Tachwedd 2014
|
265294.0
|
Rhagfyr 2014
|
271819.0
|
Ionawr 2015
|
276602.0
|
Chwefror 2015
|
278790.0
|
Mawrth 2015
|
279494.0
|
Ebrill 2015
|
279424.0
|
Mai 2015
|
281372.0
|
Mehefin 2015
|
277011.0
|
Gorffennaf 2015
|
288321.0
|
Awst 2015
|
288484.0
|
Medi 2015
|
292199.0
|
Hydref 2015
|
294556.0
|
Tachwedd 2015
|
299179.0
|
Rhagfyr 2015
|
307330.0
|
Ionawr 2016
|
306008.0
|
Chwefror 2016
|
300547.0
|
Mawrth 2016
|
300813.0
|
Ebrill 2016
|
320203.0
|
Mai 2016
|
332168.0
|
Mehefin 2016
|
323642.0
|
Gorffennaf 2016
|
327423.0
|
Awst 2016
|
324830.0
|
Medi 2016
|
329630.0
|
Hydref 2016
|
334344.0
|
Tachwedd 2016
|
334741.0
|
Rhagfyr 2016
|
337792.0
|
Ionawr 2017
|
343008.0
|
Chwefror 2017
|
342490.0
|
Mawrth 2017
|
341813.0
|
Ebrill 2017
|
343077.0
|
Mai 2017
|
346625.0
|
Mehefin 2017
|
344417.0
|
Gorffennaf 2017
|
353111.0
|
Awst 2017
|
348575.0
|
Medi 2017
|
350499.0
|
Hydref 2017
|
354413.0
|
Tachwedd 2017
|
347213.0
|
Rhagfyr 2017
|
351336.0
|
Ionawr 2018
|
360742.0
|
Chwefror 2018
|
370722.0
|
Mawrth 2018
|
355921.0
|
Ebrill 2018
|
360153.0
|
Mai 2018
|
353483.0
|
Mehefin 2018
|
355191.0
|
Gorffennaf 2018
|
362155.0
|
Awst 2018
|
364902.0
|
Medi 2018
|
358182.0
|
Hydref 2018
|
367789.0
|
Tachwedd 2018
|
354829.0
|
Rhagfyr 2018
|
359106.0
|
Ionawr 2019
|
358541.0
|
Chwefror 2019
|
371380.0
|
Mawrth 2019
|
359985.0
|
Ebrill 2019
|
361903.0
|
Mai 2019
|
357831.0
|
Mehefin 2019
|
351630.0
|
Gorffennaf 2019
|
368411.0
|
Awst 2019
|
358799.0
|
Medi 2019
|
363311.0
|
Hydref 2019
|
363313.0
|
Tachwedd 2019
|
346170.0
|
Rhagfyr 2019
|
348879.0
|
Ionawr 2020
|
369198.0
|
Dyddiad
|
Adeilad newydd
|
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
|
Chwefror 1996
|
0.8
|
Mawrth 1996
|
-0.2
|
Ebrill 1996
|
1.5
|
Mai 1996
|
-0.2
|
Mehefin 1996
|
2.5
|
Gorffennaf 1996
|
1.4
|
Awst 1996
|
3.4
|
Medi 1996
|
4.5
|
Hydref 1996
|
4.8
|
Tachwedd 1996
|
4.4
|
Rhagfyr 1996
|
4.9
|
Ionawr 1997
|
4.6
|
Chwefror 1997
|
5.4
|
Mawrth 1997
|
6.7
|
Ebrill 1997
|
5.9
|
Mai 1997
|
9.1
|
Mehefin 1997
|
7.4
|
Gorffennaf 1997
|
9.2
|
Awst 1997
|
8.3
|
Medi 1997
|
11.4
|
Hydref 1997
|
11.4
|
Tachwedd 1997
|
10.2
|
Rhagfyr 1997
|
11.8
|
Ionawr 1998
|
13.9
|
Chwefror 1998
|
12.8
|
Mawrth 1998
|
12.4
|
Ebrill 1998
|
14.6
|
Mai 1998
|
12.7
|
Mehefin 1998
|
13.2
|
Gorffennaf 1998
|
12.2
|
Awst 1998
|
12.5
|
Medi 1998
|
9.6
|
Hydref 1998
|
10.2
|
Tachwedd 1998
|
10.3
|
Rhagfyr 1998
|
9.0
|
Ionawr 1999
|
8.6
|
Chwefror 1999
|
7.3
|
Mawrth 1999
|
7.3
|
Ebrill 1999
|
5.9
|
Mai 1999
|
8.7
|
Mehefin 1999
|
8.7
|
Gorffennaf 1999
|
9.4
|
Awst 1999
|
9.3
|
Medi 1999
|
11.9
|
Hydref 1999
|
11.8
|
Tachwedd 1999
|
13.8
|
Rhagfyr 1999
|
17.4
|
Ionawr 2000
|
15.1
|
Chwefror 2000
|
16.4
|
Mawrth 2000
|
18.5
|
Ebrill 2000
|
21.6
|
Mai 2000
|
21.2
|
Mehefin 2000
|
18.9
|
Gorffennaf 2000
|
21.1
|
Awst 2000
|
22.8
|
Medi 2000
|
20.7
|
Hydref 2000
|
18.0
|
Tachwedd 2000
|
18.4
|
Rhagfyr 2000
|
15.5
|
Ionawr 2001
|
18.0
|
Chwefror 2001
|
18.7
|
Mawrth 2001
|
16.7
|
Ebrill 2001
|
15.2
|
Mai 2001
|
12.0
|
Mehefin 2001
|
16.2
|
Gorffennaf 2001
|
13.6
|
Awst 2001
|
15.4
|
Medi 2001
|
17.7
|
Hydref 2001
|
19.6
|
Tachwedd 2001
|
17.6
|
Rhagfyr 2001
|
19.0
|
Ionawr 2002
|
17.9
|
Chwefror 2002
|
19.4
|
Mawrth 2002
|
19.4
|
Ebrill 2002
|
21.6
|
Mai 2002
|
23.7
|
Mehefin 2002
|
22.0
|
Gorffennaf 2002
|
23.5
|
Awst 2002
|
22.3
|
Medi 2002
|
19.4
|
Hydref 2002
|
22.1
|
Tachwedd 2002
|
23.8
|
Rhagfyr 2002
|
22.2
|
Ionawr 2003
|
22.1
|
Chwefror 2003
|
21.0
|
Mawrth 2003
|
22.7
|
Ebrill 2003
|
19.7
|
Mai 2003
|
18.0
|
Mehefin 2003
|
17.4
|
Gorffennaf 2003
|
17.2
|
Awst 2003
|
13.4
|
Medi 2003
|
13.3
|
Hydref 2003
|
11.5
|
Tachwedd 2003
|
10.1
|
Rhagfyr 2003
|
9.9
|
Ionawr 2004
|
11.6
|
Chwefror 2004
|
11.4
|
Mawrth 2004
|
10.2
|
Ebrill 2004
|
8.0
|
Mai 2004
|
10.8
|
Mehefin 2004
|
12.8
|
Gorffennaf 2004
|
8.0
|
Awst 2004
|
10.6
|
Medi 2004
|
12.7
|
Hydref 2004
|
12.1
|
Tachwedd 2004
|
12.9
|
Rhagfyr 2004
|
12.2
|
Ionawr 2005
|
11.7
|
Chwefror 2005
|
10.2
|
Mawrth 2005
|
9.8
|
Ebrill 2005
|
11.6
|
Mai 2005
|
9.9
|
Mehefin 2005
|
6.9
|
Gorffennaf 2005
|
9.8
|
Awst 2005
|
7.8
|
Medi 2005
|
6.4
|
Hydref 2005
|
5.9
|
Tachwedd 2005
|
4.7
|
Rhagfyr 2005
|
6.1
|
Ionawr 2006
|
2.9
|
Chwefror 2006
|
4.6
|
Mawrth 2006
|
4.8
|
Ebrill 2006
|
4.8
|
Mai 2006
|
4.8
|
Mehefin 2006
|
3.9
|
Gorffennaf 2006
|
4.7
|
Awst 2006
|
4.3
|
Medi 2006
|
5.1
|
Hydref 2006
|
5.9
|
Tachwedd 2006
|
5.0
|
Rhagfyr 2006
|
5.9
|
Ionawr 2007
|
7.0
|
Chwefror 2007
|
5.5
|
Mawrth 2007
|
5.1
|
Ebrill 2007
|
5.2
|
Mai 2007
|
7.5
|
Mehefin 2007
|
8.0
|
Gorffennaf 2007
|
8.7
|
Awst 2007
|
6.8
|
Medi 2007
|
7.3
|
Hydref 2007
|
7.2
|
Tachwedd 2007
|
7.8
|
Rhagfyr 2007
|
6.0
|
Ionawr 2008
|
5.7
|
Chwefror 2008
|
6.7
|
Mawrth 2008
|
4.7
|
Ebrill 2008
|
3.0
|
Mai 2008
|
0.3
|
Mehefin 2008
|
-1.4
|
Gorffennaf 2008
|
-3.7
|
Awst 2008
|
-7.2
|
Medi 2008
|
-9.4
|
Hydref 2008
|
-12.7
|
Tachwedd 2008
|
-14.6
|
Rhagfyr 2008
|
-17.3
|
Ionawr 2009
|
-15.0
|
Chwefror 2009
|
-17.9
|
Mawrth 2009
|
-17.4
|
Ebrill 2009
|
-16.2
|
Mai 2009
|
-15.6
|
Mehefin 2009
|
-15.0
|
Gorffennaf 2009
|
-12.3
|
Awst 2009
|
-7.3
|
Medi 2009
|
-3.9
|
Hydref 2009
|
-2.2
|
Tachwedd 2009
|
0.5
|
Rhagfyr 2009
|
3.7
|
Ionawr 2010
|
-1.0
|
Chwefror 2010
|
5.5
|
Mawrth 2010
|
7.5
|
Ebrill 2010
|
6.0
|
Mai 2010
|
5.6
|
Mehefin 2010
|
6.7
|
Gorffennaf 2010
|
3.9
|
Awst 2010
|
5.4
|
Medi 2010
|
4.7
|
Hydref 2010
|
5.0
|
Tachwedd 2010
|
3.4
|
Rhagfyr 2010
|
4.6
|
Ionawr 2011
|
6.1
|
Chwefror 2011
|
0.7
|
Mawrth 2011
|
3.1
|
Ebrill 2011
|
3.1
|
Mai 2011
|
2.9
|
Mehefin 2011
|
1.1
|
Gorffennaf 2011
|
4.1
|
Awst 2011
|
1.3
|
Medi 2011
|
-1.2
|
Hydref 2011
|
0.5
|
Tachwedd 2011
|
3.0
|
Rhagfyr 2011
|
-0.1
|
Ionawr 2012
|
0.6
|
Chwefror 2012
|
1.7
|
Mawrth 2012
|
-0.6
|
Ebrill 2012
|
1.0
|
Mai 2012
|
0.9
|
Mehefin 2012
|
1.9
|
Gorffennaf 2012
|
-1.2
|
Awst 2012
|
0.6
|
Medi 2012
|
1.7
|
Hydref 2012
|
3.4
|
Tachwedd 2012
|
2.0
|
Rhagfyr 2012
|
3.3
|
Ionawr 2013
|
1.1
|
Chwefror 2013
|
0.6
|
Mawrth 2013
|
4.3
|
Ebrill 2013
|
3.3
|
Mai 2013
|
1.8
|
Mehefin 2013
|
3.0
|
Gorffennaf 2013
|
4.4
|
Awst 2013
|
4.6
|
Medi 2013
|
5.4
|
Hydref 2013
|
4.0
|
Tachwedd 2013
|
3.8
|
Rhagfyr 2013
|
7.6
|
Ionawr 2014
|
7.7
|
Chwefror 2014
|
10.6
|
Mawrth 2014
|
6.4
|
Ebrill 2014
|
8.6
|
Mai 2014
|
12.9
|
Mehefin 2014
|
11.9
|
Gorffennaf 2014
|
11.6
|
Awst 2014
|
11.3
|
Medi 2014
|
11.0
|
Hydref 2014
|
10.9
|
Tachwedd 2014
|
9.6
|
Rhagfyr 2014
|
8.5
|
Ionawr 2015
|
13.0
|
Chwefror 2015
|
11.6
|
Mawrth 2015
|
11.6
|
Ebrill 2015
|
9.2
|
Mai 2015
|
7.0
|
Mehefin 2015
|
5.9
|
Gorffennaf 2015
|
9.5
|
Awst 2015
|
9.2
|
Medi 2015
|
9.8
|
Hydref 2015
|
9.4
|
Tachwedd 2015
|
12.8
|
Rhagfyr 2015
|
13.1
|
Ionawr 2016
|
10.6
|
Chwefror 2016
|
7.8
|
Mawrth 2016
|
7.6
|
Ebrill 2016
|
14.6
|
Mai 2016
|
18.0
|
Mehefin 2016
|
16.8
|
Gorffennaf 2016
|
13.6
|
Awst 2016
|
12.6
|
Medi 2016
|
12.8
|
Hydref 2016
|
13.5
|
Tachwedd 2016
|
11.9
|
Rhagfyr 2016
|
9.9
|
Ionawr 2017
|
12.1
|
Chwefror 2017
|
14.0
|
Mawrth 2017
|
13.6
|
Ebrill 2017
|
7.1
|
Mai 2017
|
4.4
|
Mehefin 2017
|
6.4
|
Gorffennaf 2017
|
7.8
|
Awst 2017
|
7.3
|
Medi 2017
|
6.3
|
Hydref 2017
|
6.0
|
Tachwedd 2017
|
3.7
|
Rhagfyr 2017
|
4.0
|
Ionawr 2018
|
5.2
|
Chwefror 2018
|
8.2
|
Mawrth 2018
|
4.1
|
Ebrill 2018
|
5.0
|
Mai 2018
|
2.0
|
Mehefin 2018
|
3.1
|
Gorffennaf 2018
|
2.6
|
Awst 2018
|
4.7
|
Medi 2018
|
2.2
|
Hydref 2018
|
3.8
|
Tachwedd 2018
|
2.2
|
Rhagfyr 2018
|
2.2
|
Ionawr 2019
|
-0.6
|
Chwefror 2019
|
0.2
|
Mawrth 2019
|
1.1
|
Ebrill 2019
|
0.5
|
Mai 2019
|
1.2
|
Mehefin 2019
|
-1.0
|
Gorffennaf 2019
|
1.7
|
Awst 2019
|
-1.7
|
Medi 2019
|
1.4
|
Hydref 2019
|
-1.2
|
Tachwedd 2019
|
-2.4
|
Rhagfyr 2019
|
-2.8
|
Ionawr 2020
|
3.0
|
Dyddiad
|
Adeilad newydd
|
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
|
Mawrth 1995
|
-0.2
|
Ebrill 1995
|
-0.8
|
Mai 1995
|
0.6
|
Mehefin 1995
|
0.0
|
Gorffennaf 1995
|
1.0
|
Awst 1995
|
-0.6
|
Medi 1995
|
-2.0
|
Hydref 1995
|
0.5
|
Tachwedd 1995
|
1.2
|
Rhagfyr 1995
|
0.0
|
Ionawr 1996
|
0.5
|
Chwefror 1996
|
0.8
|
Mawrth 1996
|
-1.2
|
Ebrill 1996
|
0.8
|
Mai 1996
|
-1.1
|
Mehefin 1996
|
2.7
|
Gorffennaf 1996
|
-0.1
|
Awst 1996
|
1.4
|
Medi 1996
|
-1.0
|
Hydref 1996
|
0.8
|
Tachwedd 1996
|
0.8
|
Rhagfyr 1996
|
0.5
|
Ionawr 1997
|
0.1
|
Chwefror 1997
|
1.6
|
Mawrth 1997
|
0.0
|
Ebrill 1997
|
0.0
|
Mai 1997
|
1.9
|
Mehefin 1997
|
1.1
|
Gorffennaf 1997
|
1.6
|
Awst 1997
|
0.6
|
Medi 1997
|
1.8
|
Hydref 1997
|
0.8
|
Tachwedd 1997
|
-0.2
|
Rhagfyr 1997
|
2.0
|
Ionawr 1998
|
1.9
|
Chwefror 1998
|
0.7
|
Mawrth 1998
|
-0.3
|
Ebrill 1998
|
2.0
|
Mai 1998
|
0.2
|
Mehefin 1998
|
1.5
|
Gorffennaf 1998
|
0.7
|
Awst 1998
|
0.9
|
Medi 1998
|
-0.8
|
Hydref 1998
|
1.3
|
Tachwedd 1998
|
-0.2
|
Rhagfyr 1998
|
0.7
|
Ionawr 1999
|
1.6
|
Chwefror 1999
|
-0.6
|
Mawrth 1999
|
-0.3
|
Ebrill 1999
|
0.7
|
Mai 1999
|
2.8
|
Mehefin 1999
|
1.5
|
Gorffennaf 1999
|
1.3
|
Awst 1999
|
0.8
|
Medi 1999
|
1.6
|
Hydref 1999
|
1.2
|
Tachwedd 1999
|
1.6
|
Rhagfyr 1999
|
3.9
|
Ionawr 2000
|
-0.4
|
Chwefror 2000
|
0.6
|
Mawrth 2000
|
1.6
|
Ebrill 2000
|
3.3
|
Mai 2000
|
2.4
|
Mehefin 2000
|
-0.4
|
Gorffennaf 2000
|
3.2
|
Awst 2000
|
2.2
|
Medi 2000
|
-0.1
|
Hydref 2000
|
-1.1
|
Tachwedd 2000
|
2.0
|
Rhagfyr 2000
|
1.3
|
Ionawr 2001
|
1.8
|
Chwefror 2001
|
1.2
|
Mawrth 2001
|
-0.1
|
Ebrill 2001
|
1.9
|
Mai 2001
|
-0.4
|
Mehefin 2001
|
3.3
|
Gorffennaf 2001
|
0.9
|
Awst 2001
|
3.9
|
Medi 2001
|
1.9
|
Hydref 2001
|
0.6
|
Tachwedd 2001
|
0.3
|
Rhagfyr 2001
|
2.4
|
Ionawr 2002
|
0.8
|
Chwefror 2002
|
2.5
|
Mawrth 2002
|
-0.2
|
Ebrill 2002
|
3.9
|
Mai 2002
|
1.3
|
Mehefin 2002
|
1.8
|
Gorffennaf 2002
|
2.1
|
Awst 2002
|
2.9
|
Medi 2002
|
-0.5
|
Hydref 2002
|
2.8
|
Tachwedd 2002
|
1.7
|
Rhagfyr 2002
|
1.1
|
Ionawr 2003
|
0.8
|
Chwefror 2003
|
1.6
|
Mawrth 2003
|
1.3
|
Ebrill 2003
|
1.3
|
Mai 2003
|
-0.1
|
Mehefin 2003
|
1.3
|
Gorffennaf 2003
|
1.9
|
Awst 2003
|
-0.4
|
Medi 2003
|
-0.6
|
Hydref 2003
|
1.2
|
Tachwedd 2003
|
0.4
|
Rhagfyr 2003
|
0.9
|
Ionawr 2004
|
2.3
|
Chwefror 2004
|
1.4
|
Mawrth 2004
|
0.2
|
Ebrill 2004
|
-0.8
|
Mai 2004
|
2.5
|
Mehefin 2004
|
3.1
|
Gorffennaf 2004
|
-2.4
|
Awst 2004
|
2.0
|
Medi 2004
|
1.3
|
Hydref 2004
|
0.6
|
Tachwedd 2004
|
1.2
|
Rhagfyr 2004
|
0.2
|
Ionawr 2005
|
1.8
|
Chwefror 2005
|
0.0
|
Mawrth 2005
|
-0.2
|
Ebrill 2005
|
0.9
|
Mai 2005
|
0.9
|
Mehefin 2005
|
0.2
|
Gorffennaf 2005
|
0.3
|
Awst 2005
|
0.1
|
Medi 2005
|
0.0
|
Hydref 2005
|
0.2
|
Tachwedd 2005
|
0.1
|
Rhagfyr 2005
|
1.5
|
Ionawr 2006
|
-1.2
|
Chwefror 2006
|
1.7
|
Mawrth 2006
|
0.0
|
Ebrill 2006
|
1.0
|
Mai 2006
|
0.8
|
Mehefin 2006
|
-0.6
|
Gorffennaf 2006
|
1.0
|
Awst 2006
|
-0.3
|
Medi 2006
|
0.8
|
Hydref 2006
|
0.9
|
Tachwedd 2006
|
-0.8
|
Rhagfyr 2006
|
2.4
|
Ionawr 2007
|
-0.1
|
Chwefror 2007
|
0.2
|
Mawrth 2007
|
-0.3
|
Ebrill 2007
|
1.0
|
Mai 2007
|
3.1
|
Mehefin 2007
|
-0.2
|
Gorffennaf 2007
|
1.6
|
Awst 2007
|
-2.0
|
Medi 2007
|
1.3
|
Hydref 2007
|
0.8
|
Tachwedd 2007
|
-0.2
|
Rhagfyr 2007
|
0.7
|
Ionawr 2008
|
-0.4
|
Chwefror 2008
|
1.1
|
Mawrth 2008
|
-2.2
|
Ebrill 2008
|
-0.7
|
Mai 2008
|
0.5
|
Mehefin 2008
|
-1.9
|
Gorffennaf 2008
|
-0.7
|
Awst 2008
|
-5.6
|
Medi 2008
|
-1.1
|
Hydref 2008
|
-2.8
|
Tachwedd 2008
|
-2.4
|
Rhagfyr 2008
|
-2.5
|
Ionawr 2009
|
2.3
|
Chwefror 2009
|
-2.3
|
Mawrth 2009
|
-1.5
|
Ebrill 2009
|
0.8
|
Mai 2009
|
1.1
|
Mehefin 2009
|
-1.2
|
Gorffennaf 2009
|
2.5
|
Awst 2009
|
-0.2
|
Medi 2009
|
2.5
|
Hydref 2009
|
-1.1
|
Tachwedd 2009
|
0.3
|
Rhagfyr 2009
|
0.6
|
Ionawr 2010
|
-2.4
|
Chwefror 2010
|
4.1
|
Mawrth 2010
|
0.3
|
Ebrill 2010
|
-0.5
|
Mai 2010
|
0.7
|
Mehefin 2010
|
-0.1
|
Gorffennaf 2010
|
-0.2
|
Awst 2010
|
1.2
|
Medi 2010
|
1.8
|
Hydref 2010
|
-0.8
|
Tachwedd 2010
|
-1.2
|
Rhagfyr 2010
|
1.8
|
Ionawr 2011
|
-0.9
|
Chwefror 2011
|
-1.2
|
Mawrth 2011
|
2.8
|
Ebrill 2011
|
-0.6
|
Mai 2011
|
0.5
|
Mehefin 2011
|
-1.8
|
Gorffennaf 2011
|
2.8
|
Awst 2011
|
-1.5
|
Medi 2011
|
-0.7
|
Hydref 2011
|
0.9
|
Tachwedd 2011
|
1.3
|
Rhagfyr 2011
|
-1.3
|
Ionawr 2012
|
-0.3
|
Chwefror 2012
|
-0.1
|
Mawrth 2012
|
0.4
|
Ebrill 2012
|
1.1
|
Mai 2012
|
0.4
|
Mehefin 2012
|
-0.8
|
Gorffennaf 2012
|
-0.4
|
Awst 2012
|
0.3
|
Medi 2012
|
0.4
|
Hydref 2012
|
2.5
|
Tachwedd 2012
|
-0.1
|
Rhagfyr 2012
|
-0.1
|
Ionawr 2013
|
-2.4
|
Chwefror 2013
|
-0.6
|
Mawrth 2013
|
4.1
|
Ebrill 2013
|
0.1
|
Mai 2013
|
-1.1
|
Mehefin 2013
|
0.3
|
Gorffennaf 2013
|
1.0
|
Awst 2013
|
0.5
|
Medi 2013
|
1.1
|
Hydref 2013
|
1.2
|
Tachwedd 2013
|
-0.3
|
Rhagfyr 2013
|
3.6
|
Ionawr 2014
|
-2.3
|
Chwefror 2014
|
2.1
|
Mawrth 2014
|
0.2
|
Ebrill 2014
|
2.1
|
Mai 2014
|
2.8
|
Mehefin 2014
|
-0.5
|
Gorffennaf 2014
|
0.7
|
Awst 2014
|
0.3
|
Medi 2014
|
0.8
|
Hydref 2014
|
1.2
|
Tachwedd 2014
|
-1.5
|
Rhagfyr 2014
|
2.5
|
Ionawr 2015
|
1.8
|
Chwefror 2015
|
0.8
|
Mawrth 2015
|
0.2
|
Ebrill 2015
|
-0.0
|
Mai 2015
|
0.7
|
Mehefin 2015
|
-1.6
|
Gorffennaf 2015
|
4.1
|
Awst 2015
|
0.1
|
Medi 2015
|
1.3
|
Hydref 2015
|
0.8
|
Tachwedd 2015
|
1.6
|
Rhagfyr 2015
|
2.7
|
Ionawr 2016
|
-0.4
|
Chwefror 2016
|
-1.8
|
Mawrth 2016
|
0.1
|
Ebrill 2016
|
6.4
|
Mai 2016
|
3.7
|
Mehefin 2016
|
-2.6
|
Gorffennaf 2016
|
1.2
|
Awst 2016
|
-0.8
|
Medi 2016
|
1.5
|
Hydref 2016
|
1.4
|
Tachwedd 2016
|
0.1
|
Rhagfyr 2016
|
0.9
|
Ionawr 2017
|
1.5
|
Chwefror 2017
|
-0.2
|
Mawrth 2017
|
-0.2
|
Ebrill 2017
|
0.4
|
Mai 2017
|
1.0
|
Mehefin 2017
|
-0.6
|
Gorffennaf 2017
|
2.5
|
Awst 2017
|
-1.3
|
Medi 2017
|
0.6
|
Hydref 2017
|
1.1
|
Tachwedd 2017
|
-2.0
|
Rhagfyr 2017
|
1.2
|
Ionawr 2018
|
2.7
|
Chwefror 2018
|
2.8
|
Mawrth 2018
|
-4.0
|
Ebrill 2018
|
1.2
|
Mai 2018
|
-1.8
|
Mehefin 2018
|
0.5
|
Gorffennaf 2018
|
2.0
|
Awst 2018
|
0.8
|
Medi 2018
|
-1.8
|
Hydref 2018
|
2.7
|
Tachwedd 2018
|
-3.5
|
Rhagfyr 2018
|
1.2
|
Ionawr 2019
|
-0.2
|
Chwefror 2019
|
3.6
|
Mawrth 2019
|
-3.1
|
Ebrill 2019
|
0.5
|
Mai 2019
|
-1.1
|
Mehefin 2019
|
-1.7
|
Gorffennaf 2019
|
4.8
|
Awst 2019
|
-2.6
|
Medi 2019
|
1.3
|
Hydref 2019
|
0.0
|
Tachwedd 2019
|
-4.7
|
Rhagfyr 2019
|
0.8
|
Ionawr 2020
|
5.8
|
Dyddiad
|
Adeilad newydd
|
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
|
Chwefror 1995
|
24.7
|
Mawrth 1995
|
24.6
|
Ebrill 1995
|
24.4
|
Mai 1995
|
24.6
|
Mehefin 1995
|
24.6
|
Gorffennaf 1995
|
24.8
|
Awst 1995
|
24.7
|
Medi 1995
|
24.2
|
Hydref 1995
|
24.3
|
Tachwedd 1995
|
24.6
|
Rhagfyr 1995
|
24.6
|
Ionawr 1996
|
24.7
|
Chwefror 1996
|
24.9
|
Mawrth 1996
|
24.6
|
Ebrill 1996
|
24.8
|
Mai 1996
|
24.6
|
Mehefin 1996
|
25.2
|
Gorffennaf 1996
|
25.2
|
Awst 1996
|
25.5
|
Medi 1996
|
25.3
|
Hydref 1996
|
25.5
|
Tachwedd 1996
|
25.7
|
Rhagfyr 1996
|
25.8
|
Ionawr 1997
|
25.8
|
Chwefror 1997
|
26.3
|
Mawrth 1997
|
26.3
|
Ebrill 1997
|
26.3
|
Mai 1997
|
26.8
|
Mehefin 1997
|
27.1
|
Gorffennaf 1997
|
27.5
|
Awst 1997
|
27.6
|
Medi 1997
|
28.2
|
Hydref 1997
|
28.4
|
Tachwedd 1997
|
28.3
|
Rhagfyr 1997
|
28.9
|
Ionawr 1998
|
29.4
|
Chwefror 1998
|
29.6
|
Mawrth 1998
|
29.5
|
Ebrill 1998
|
30.1
|
Mai 1998
|
30.2
|
Mehefin 1998
|
30.6
|
Gorffennaf 1998
|
30.8
|
Awst 1998
|
31.1
|
Medi 1998
|
30.9
|
Hydref 1998
|
31.3
|
Tachwedd 1998
|
31.2
|
Rhagfyr 1998
|
31.5
|
Ionawr 1999
|
32.0
|
Chwefror 1999
|
31.8
|
Mawrth 1999
|
31.7
|
Ebrill 1999
|
31.9
|
Mai 1999
|
32.8
|
Mehefin 1999
|
33.3
|
Gorffennaf 1999
|
33.7
|
Awst 1999
|
34.0
|
Medi 1999
|
34.6
|
Hydref 1999
|
35.0
|
Tachwedd 1999
|
35.5
|
Rhagfyr 1999
|
36.9
|
Ionawr 2000
|
36.8
|
Chwefror 2000
|
37.0
|
Mawrth 2000
|
37.6
|
Ebrill 2000
|
38.8
|
Mai 2000
|
39.7
|
Mehefin 2000
|
39.6
|
Gorffennaf 2000
|
40.8
|
Awst 2000
|
41.7
|
Medi 2000
|
41.7
|
Hydref 2000
|
41.3
|
Tachwedd 2000
|
42.1
|
Rhagfyr 2000
|
42.6
|
Ionawr 2001
|
43.4
|
Chwefror 2001
|
43.9
|
Mawrth 2001
|
43.8
|
Ebrill 2001
|
44.7
|
Mai 2001
|
44.5
|
Mehefin 2001
|
46.0
|
Gorffennaf 2001
|
46.4
|
Awst 2001
|
48.2
|
Medi 2001
|
49.1
|
Hydref 2001
|
49.4
|
Tachwedd 2001
|
49.5
|
Rhagfyr 2001
|
50.7
|
Ionawr 2002
|
51.1
|
Chwefror 2002
|
52.4
|
Mawrth 2002
|
52.3
|
Ebrill 2002
|
54.4
|
Mai 2002
|
55.1
|
Mehefin 2002
|
56.1
|
Gorffennaf 2002
|
57.3
|
Awst 2002
|
58.9
|
Medi 2002
|
58.6
|
Hydref 2002
|
60.3
|
Tachwedd 2002
|
61.3
|
Rhagfyr 2002
|
62.0
|
Ionawr 2003
|
62.4
|
Chwefror 2003
|
63.4
|
Mawrth 2003
|
64.2
|
Ebrill 2003
|
65.0
|
Mai 2003
|
65.0
|
Mehefin 2003
|
65.8
|
Gorffennaf 2003
|
67.1
|
Awst 2003
|
66.8
|
Medi 2003
|
66.4
|
Hydref 2003
|
67.2
|
Tachwedd 2003
|
67.5
|
Rhagfyr 2003
|
68.1
|
Ionawr 2004
|
69.7
|
Chwefror 2004
|
70.7
|
Mawrth 2004
|
70.8
|
Ebrill 2004
|
70.3
|
Mai 2004
|
72.0
|
Mehefin 2004
|
74.2
|
Gorffennaf 2004
|
72.4
|
Awst 2004
|
73.9
|
Medi 2004
|
74.9
|
Hydref 2004
|
75.3
|
Tachwedd 2004
|
76.2
|
Rhagfyr 2004
|
76.4
|
Ionawr 2005
|
77.8
|
Chwefror 2005
|
77.8
|
Mawrth 2005
|
77.7
|
Ebrill 2005
|
78.4
|
Mai 2005
|
79.2
|
Mehefin 2005
|
79.3
|
Gorffennaf 2005
|
79.6
|
Awst 2005
|
79.6
|
Medi 2005
|
79.6
|
Hydref 2005
|
79.8
|
Tachwedd 2005
|
79.8
|
Rhagfyr 2005
|
81.0
|
Ionawr 2006
|
80.1
|
Chwefror 2006
|
81.4
|
Mawrth 2006
|
81.4
|
Ebrill 2006
|
82.2
|
Mai 2006
|
82.9
|
Mehefin 2006
|
82.4
|
Gorffennaf 2006
|
83.3
|
Awst 2006
|
83.0
|
Medi 2006
|
83.7
|
Hydref 2006
|
84.5
|
Tachwedd 2006
|
83.8
|
Rhagfyr 2006
|
85.8
|
Ionawr 2007
|
85.7
|
Chwefror 2007
|
85.9
|
Mawrth 2007
|
85.6
|
Ebrill 2007
|
86.5
|
Mai 2007
|
89.2
|
Mehefin 2007
|
89.0
|
Gorffennaf 2007
|
90.5
|
Awst 2007
|
88.7
|
Medi 2007
|
89.8
|
Hydref 2007
|
90.5
|
Tachwedd 2007
|
90.3
|
Rhagfyr 2007
|
91.0
|
Ionawr 2008
|
90.6
|
Chwefror 2008
|
91.6
|
Mawrth 2008
|
89.7
|
Ebrill 2008
|
89.1
|
Mai 2008
|
89.5
|
Mehefin 2008
|
87.8
|
Gorffennaf 2008
|
87.2
|
Awst 2008
|
82.3
|
Medi 2008
|
81.3
|
Hydref 2008
|
79.0
|
Tachwedd 2008
|
77.2
|
Rhagfyr 2008
|
75.2
|
Ionawr 2009
|
77.0
|
Chwefror 2009
|
75.2
|
Mawrth 2009
|
74.1
|
Ebrill 2009
|
74.7
|
Mai 2009
|
75.5
|
Mehefin 2009
|
74.6
|
Gorffennaf 2009
|
76.5
|
Awst 2009
|
76.3
|
Medi 2009
|
78.2
|
Hydref 2009
|
77.3
|
Tachwedd 2009
|
77.5
|
Rhagfyr 2009
|
78.0
|
Ionawr 2010
|
76.2
|
Chwefror 2010
|
79.3
|
Mawrth 2010
|
79.6
|
Ebrill 2010
|
79.2
|
Mai 2010
|
79.7
|
Mehefin 2010
|
79.6
|
Gorffennaf 2010
|
79.5
|
Awst 2010
|
80.4
|
Medi 2010
|
81.8
|
Hydref 2010
|
81.2
|
Tachwedd 2010
|
80.2
|
Rhagfyr 2010
|
81.6
|
Ionawr 2011
|
80.8
|
Chwefror 2011
|
79.9
|
Mawrth 2011
|
82.1
|
Ebrill 2011
|
81.6
|
Mai 2011
|
82.0
|
Mehefin 2011
|
80.5
|
Gorffennaf 2011
|
82.7
|
Awst 2011
|
81.4
|
Medi 2011
|
80.9
|
Hydref 2011
|
81.6
|
Tachwedd 2011
|
82.6
|
Rhagfyr 2011
|
81.5
|
Ionawr 2012
|
81.3
|
Chwefror 2012
|
81.2
|
Mawrth 2012
|
81.6
|
Ebrill 2012
|
82.4
|
Mai 2012
|
82.7
|
Mehefin 2012
|
82.0
|
Gorffennaf 2012
|
81.7
|
Awst 2012
|
82.0
|
Medi 2012
|
82.3
|
Hydref 2012
|
84.4
|
Tachwedd 2012
|
84.3
|
Rhagfyr 2012
|
84.2
|
Ionawr 2013
|
82.2
|
Chwefror 2013
|
81.7
|
Mawrth 2013
|
85.1
|
Ebrill 2013
|
85.2
|
Mai 2013
|
84.2
|
Mehefin 2013
|
84.5
|
Gorffennaf 2013
|
85.3
|
Awst 2013
|
85.8
|
Medi 2013
|
86.7
|
Hydref 2013
|
87.8
|
Tachwedd 2013
|
87.5
|
Rhagfyr 2013
|
90.6
|
Ionawr 2014
|
88.5
|
Chwefror 2014
|
90.3
|
Mawrth 2014
|
90.6
|
Ebrill 2014
|
92.5
|
Mai 2014
|
95.0
|
Mehefin 2014
|
94.6
|
Gorffennaf 2014
|
95.2
|
Awst 2014
|
95.5
|
Medi 2014
|
96.2
|
Hydref 2014
|
97.4
|
Tachwedd 2014
|
95.9
|
Rhagfyr 2014
|
98.3
|
Ionawr 2015
|
100.0
|
Chwefror 2015
|
100.8
|
Mawrth 2015
|
101.0
|
Ebrill 2015
|
101.0
|
Mai 2015
|
101.7
|
Mehefin 2015
|
100.2
|
Gorffennaf 2015
|
104.2
|
Awst 2015
|
104.3
|
Medi 2015
|
105.6
|
Hydref 2015
|
106.5
|
Tachwedd 2015
|
108.2
|
Rhagfyr 2015
|
111.1
|
Ionawr 2016
|
110.6
|
Chwefror 2016
|
108.7
|
Mawrth 2016
|
108.8
|
Ebrill 2016
|
115.8
|
Mai 2016
|
120.1
|
Mehefin 2016
|
117.0
|
Gorffennaf 2016
|
118.4
|
Awst 2016
|
117.4
|
Medi 2016
|
119.2
|
Hydref 2016
|
120.9
|
Tachwedd 2016
|
121.0
|
Rhagfyr 2016
|
122.1
|
Ionawr 2017
|
124.0
|
Chwefror 2017
|
123.8
|
Mawrth 2017
|
123.6
|
Ebrill 2017
|
124.0
|
Mai 2017
|
125.3
|
Mehefin 2017
|
124.5
|
Gorffennaf 2017
|
127.7
|
Awst 2017
|
126.0
|
Medi 2017
|
126.7
|
Hydref 2017
|
128.1
|
Tachwedd 2017
|
125.5
|
Rhagfyr 2017
|
127.0
|
Ionawr 2018
|
130.4
|
Chwefror 2018
|
134.0
|
Mawrth 2018
|
128.7
|
Ebrill 2018
|
130.2
|
Mai 2018
|
127.8
|
Mehefin 2018
|
128.4
|
Gorffennaf 2018
|
130.9
|
Awst 2018
|
131.9
|
Medi 2018
|
129.5
|
Hydref 2018
|
133.0
|
Tachwedd 2018
|
128.3
|
Rhagfyr 2018
|
129.8
|
Ionawr 2019
|
129.6
|
Chwefror 2019
|
134.3
|
Mawrth 2019
|
130.2
|
Ebrill 2019
|
130.8
|
Mai 2019
|
129.4
|
Mehefin 2019
|
127.1
|
Gorffennaf 2019
|
133.2
|
Awst 2019
|
129.7
|
Medi 2019
|
131.4
|
Hydref 2019
|
131.4
|
Tachwedd 2019
|
125.2
|
Rhagfyr 2019
|
126.1
|
Ionawr 2020
|
133.5
|