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 teras
|
Ionawr 1995
|
51089.0
|
Chwefror 1995
|
51210.0
|
Mawrth 1995
|
51702.0
|
Ebrill 1995
|
51862.0
|
Mai 1995
|
51721.0
|
Mehefin 1995
|
52451.0
|
Gorffennaf 1995
|
52262.0
|
Awst 1995
|
51927.0
|
Medi 1995
|
51562.0
|
Hydref 1995
|
50577.0
|
Tachwedd 1995
|
51111.0
|
Rhagfyr 1995
|
51536.0
|
Ionawr 1996
|
50935.0
|
Chwefror 1996
|
50979.0
|
Mawrth 1996
|
50919.0
|
Ebrill 1996
|
52083.0
|
Mai 1996
|
52566.0
|
Mehefin 1996
|
52647.0
|
Gorffennaf 1996
|
53323.0
|
Awst 1996
|
53727.0
|
Medi 1996
|
53523.0
|
Hydref 1996
|
53321.0
|
Tachwedd 1996
|
54277.0
|
Rhagfyr 1996
|
54930.0
|
Ionawr 1997
|
54925.0
|
Chwefror 1997
|
55318.0
|
Mawrth 1997
|
56589.0
|
Ebrill 1997
|
57400.0
|
Mai 1997
|
58397.0
|
Mehefin 1997
|
59327.0
|
Gorffennaf 1997
|
60325.0
|
Awst 1997
|
61489.0
|
Medi 1997
|
61944.0
|
Hydref 1997
|
62524.0
|
Tachwedd 1997
|
63165.0
|
Rhagfyr 1997
|
63169.0
|
Ionawr 1998
|
63226.0
|
Chwefror 1998
|
63310.0
|
Mawrth 1998
|
64468.0
|
Ebrill 1998
|
65823.0
|
Mai 1998
|
66849.0
|
Mehefin 1998
|
67211.0
|
Gorffennaf 1998
|
67856.0
|
Awst 1998
|
68627.0
|
Medi 1998
|
68250.0
|
Hydref 1998
|
68352.0
|
Tachwedd 1998
|
68163.0
|
Rhagfyr 1998
|
68389.0
|
Ionawr 1999
|
68734.0
|
Chwefror 1999
|
68620.0
|
Mawrth 1999
|
69265.0
|
Ebrill 1999
|
71219.0
|
Mai 1999
|
71908.0
|
Mehefin 1999
|
73195.0
|
Gorffennaf 1999
|
74351.0
|
Awst 1999
|
76196.0
|
Medi 1999
|
77989.0
|
Hydref 1999
|
78135.0
|
Tachwedd 1999
|
79720.0
|
Rhagfyr 1999
|
81561.0
|
Ionawr 2000
|
81498.0
|
Chwefror 2000
|
82378.0
|
Mawrth 2000
|
84779.0
|
Ebrill 2000
|
87911.0
|
Mai 2000
|
88624.0
|
Mehefin 2000
|
90668.0
|
Gorffennaf 2000
|
90595.0
|
Awst 2000
|
91857.0
|
Medi 2000
|
91760.0
|
Hydref 2000
|
91668.0
|
Tachwedd 2000
|
91220.0
|
Rhagfyr 2000
|
92341.0
|
Ionawr 2001
|
92640.0
|
Chwefror 2001
|
92858.0
|
Mawrth 2001
|
94206.0
|
Ebrill 2001
|
96932.0
|
Mai 2001
|
97839.0
|
Mehefin 2001
|
99756.0
|
Gorffennaf 2001
|
101353.0
|
Awst 2001
|
103055.0
|
Medi 2001
|
103492.0
|
Hydref 2001
|
104436.0
|
Tachwedd 2001
|
105195.0
|
Rhagfyr 2001
|
105848.0
|
Ionawr 2002
|
106460.0
|
Chwefror 2002
|
107298.0
|
Mawrth 2002
|
108936.0
|
Ebrill 2002
|
110795.0
|
Mai 2002
|
114669.0
|
Mehefin 2002
|
117183.0
|
Gorffennaf 2002
|
120048.0
|
Awst 2002
|
124118.0
|
Medi 2002
|
125111.0
|
Hydref 2002
|
126739.0
|
Tachwedd 2002
|
129076.0
|
Rhagfyr 2002
|
130622.0
|
Ionawr 2003
|
132911.0
|
Chwefror 2003
|
132966.0
|
Mawrth 2003
|
134494.0
|
Ebrill 2003
|
135646.0
|
Mai 2003
|
137678.0
|
Mehefin 2003
|
138430.0
|
Gorffennaf 2003
|
140258.0
|
Awst 2003
|
140929.0
|
Medi 2003
|
140080.0
|
Hydref 2003
|
142979.0
|
Tachwedd 2003
|
143636.0
|
Rhagfyr 2003
|
144901.0
|
Ionawr 2004
|
145590.0
|
Chwefror 2004
|
146929.0
|
Mawrth 2004
|
148553.0
|
Ebrill 2004
|
151518.0
|
Mai 2004
|
154690.0
|
Mehefin 2004
|
155986.0
|
Gorffennaf 2004
|
158325.0
|
Awst 2004
|
161207.0
|
Medi 2004
|
160440.0
|
Hydref 2004
|
160558.0
|
Tachwedd 2004
|
162070.0
|
Rhagfyr 2004
|
161440.0
|
Ionawr 2005
|
159778.0
|
Chwefror 2005
|
159958.0
|
Mawrth 2005
|
160913.0
|
Ebrill 2005
|
162280.0
|
Mai 2005
|
162740.0
|
Mehefin 2005
|
164081.0
|
Gorffennaf 2005
|
164478.0
|
Awst 2005
|
164922.0
|
Medi 2005
|
165553.0
|
Hydref 2005
|
163661.0
|
Tachwedd 2005
|
165044.0
|
Rhagfyr 2005
|
165747.0
|
Ionawr 2006
|
165878.0
|
Chwefror 2006
|
166658.0
|
Mawrth 2006
|
167401.0
|
Ebrill 2006
|
169944.0
|
Mai 2006
|
171635.0
|
Mehefin 2006
|
173531.0
|
Gorffennaf 2006
|
175833.0
|
Awst 2006
|
176433.0
|
Medi 2006
|
177597.0
|
Hydref 2006
|
177488.0
|
Tachwedd 2006
|
179054.0
|
Rhagfyr 2006
|
182296.0
|
Ionawr 2007
|
182677.0
|
Chwefror 2007
|
181319.0
|
Mawrth 2007
|
184210.0
|
Ebrill 2007
|
187875.0
|
Mai 2007
|
190996.0
|
Mehefin 2007
|
192401.0
|
Gorffennaf 2007
|
195989.0
|
Awst 2007
|
196044.0
|
Medi 2007
|
197068.0
|
Hydref 2007
|
197693.0
|
Tachwedd 2007
|
196880.0
|
Rhagfyr 2007
|
195657.0
|
Ionawr 2008
|
193565.0
|
Chwefror 2008
|
191511.0
|
Mawrth 2008
|
193319.0
|
Ebrill 2008
|
191698.0
|
Mai 2008
|
192020.0
|
Mehefin 2008
|
190095.0
|
Gorffennaf 2008
|
188173.0
|
Awst 2008
|
181266.0
|
Medi 2008
|
177363.0
|
Hydref 2008
|
171657.0
|
Tachwedd 2008
|
166565.0
|
Rhagfyr 2008
|
166466.0
|
Ionawr 2009
|
158965.0
|
Chwefror 2009
|
157848.0
|
Mawrth 2009
|
157391.0
|
Ebrill 2009
|
160130.0
|
Mai 2009
|
163217.0
|
Mehefin 2009
|
165789.0
|
Gorffennaf 2009
|
168228.0
|
Awst 2009
|
171846.0
|
Medi 2009
|
174151.0
|
Hydref 2009
|
174750.0
|
Tachwedd 2009
|
177199.0
|
Rhagfyr 2009
|
177502.0
|
Ionawr 2010
|
181347.0
|
Chwefror 2010
|
180929.0
|
Mawrth 2010
|
179715.0
|
Ebrill 2010
|
181594.0
|
Mai 2010
|
183273.0
|
Mehefin 2010
|
185517.0
|
Gorffennaf 2010
|
186738.0
|
Awst 2010
|
185433.0
|
Medi 2010
|
186618.0
|
Hydref 2010
|
183127.0
|
Tachwedd 2010
|
181116.0
|
Rhagfyr 2010
|
181207.0
|
Ionawr 2011
|
178553.0
|
Chwefror 2011
|
178614.0
|
Mawrth 2011
|
177739.0
|
Ebrill 2011
|
180257.0
|
Mai 2011
|
180609.0
|
Mehefin 2011
|
181610.0
|
Gorffennaf 2011
|
183978.0
|
Awst 2011
|
182067.0
|
Medi 2011
|
182762.0
|
Hydref 2011
|
179953.0
|
Tachwedd 2011
|
181103.0
|
Rhagfyr 2011
|
181458.0
|
Ionawr 2012
|
180249.0
|
Chwefror 2012
|
180714.0
|
Mawrth 2012
|
182818.0
|
Ebrill 2012
|
184542.0
|
Mai 2012
|
185229.0
|
Mehefin 2012
|
187931.0
|
Gorffennaf 2012
|
188543.0
|
Awst 2012
|
189984.0
|
Medi 2012
|
190163.0
|
Hydref 2012
|
186981.0
|
Tachwedd 2012
|
187361.0
|
Rhagfyr 2012
|
188611.0
|
Ionawr 2013
|
187069.0
|
Chwefror 2013
|
186264.0
|
Mawrth 2013
|
187129.0
|
Ebrill 2013
|
190184.0
|
Mai 2013
|
190361.0
|
Mehefin 2013
|
193229.0
|
Gorffennaf 2013
|
195126.0
|
Awst 2013
|
195655.0
|
Medi 2013
|
195947.0
|
Hydref 2013
|
195373.0
|
Tachwedd 2013
|
197903.0
|
Rhagfyr 2013
|
199519.0
|
Ionawr 2014
|
200100.0
|
Chwefror 2014
|
200720.0
|
Mawrth 2014
|
203092.0
|
Ebrill 2014
|
206603.0
|
Mai 2014
|
210420.0
|
Mehefin 2014
|
211784.0
|
Gorffennaf 2014
|
215888.0
|
Awst 2014
|
218458.0
|
Medi 2014
|
220063.0
|
Hydref 2014
|
219515.0
|
Tachwedd 2014
|
219067.0
|
Rhagfyr 2014
|
220137.0
|
Ionawr 2015
|
220362.0
|
Chwefror 2015
|
220046.0
|
Mawrth 2015
|
219769.0
|
Ebrill 2015
|
223812.0
|
Mai 2015
|
226066.0
|
Mehefin 2015
|
230785.0
|
Gorffennaf 2015
|
233695.0
|
Awst 2015
|
236715.0
|
Medi 2015
|
236881.0
|
Hydref 2015
|
239236.0
|
Tachwedd 2015
|
240490.0
|
Rhagfyr 2015
|
242854.0
|
Ionawr 2016
|
244155.0
|
Chwefror 2016
|
246413.0
|
Mawrth 2016
|
249718.0
|
Ebrill 2016
|
249537.0
|
Mai 2016
|
252591.0
|
Mehefin 2016
|
255173.0
|
Gorffennaf 2016
|
258820.0
|
Awst 2016
|
259416.0
|
Medi 2016
|
255985.0
|
Hydref 2016
|
255471.0
|
Tachwedd 2016
|
255057.0
|
Rhagfyr 2016
|
257084.0
|
Ionawr 2017
|
259964.0
|
Chwefror 2017
|
257314.0
|
Mawrth 2017
|
257310.0
|
Ebrill 2017
|
260031.0
|
Mai 2017
|
261038.0
|
Mehefin 2017
|
264796.0
|
Gorffennaf 2017
|
266921.0
|
Awst 2017
|
269861.0
|
Medi 2017
|
268334.0
|
Hydref 2017
|
267967.0
|
Tachwedd 2017
|
266488.0
|
Rhagfyr 2017
|
267596.0
|
Ionawr 2018
|
266595.0
|
Chwefror 2018
|
267681.0
|
Mawrth 2018
|
267306.0
|
Ebrill 2018
|
269659.0
|
Mai 2018
|
268656.0
|
Mehefin 2018
|
270795.0
|
Gorffennaf 2018
|
273194.0
|
Awst 2018
|
274797.0
|
Medi 2018
|
273391.0
|
Hydref 2018
|
270380.0
|
Tachwedd 2018
|
270326.0
|
Rhagfyr 2018
|
267581.0
|
Ionawr 2019
|
267370.0
|
Chwefror 2019
|
266470.0
|
Mawrth 2019
|
264759.0
|
Ebrill 2019
|
267019.0
|
Mai 2019
|
267782.0
|
Mehefin 2019
|
268303.0
|
Gorffennaf 2019
|
270301.0
|
Awst 2019
|
271085.0
|
Medi 2019
|
272118.0
|
Hydref 2019
|
269580.0
|
Tachwedd 2019
|
269485.0
|
Rhagfyr 2019
|
269522.0
|
Ionawr 2020
|
269932.0
|
Dyddiad
|
Tai teras
|
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
|
-0.3
|
Chwefror 1996
|
-0.4
|
Mawrth 1996
|
-1.5
|
Ebrill 1996
|
0.4
|
Mai 1996
|
1.6
|
Mehefin 1996
|
0.4
|
Gorffennaf 1996
|
2.0
|
Awst 1996
|
3.5
|
Medi 1996
|
3.8
|
Hydref 1996
|
5.4
|
Tachwedd 1996
|
6.2
|
Rhagfyr 1996
|
6.6
|
Ionawr 1997
|
7.8
|
Chwefror 1997
|
8.5
|
Mawrth 1997
|
11.1
|
Ebrill 1997
|
10.2
|
Mai 1997
|
11.1
|
Mehefin 1997
|
12.7
|
Gorffennaf 1997
|
13.1
|
Awst 1997
|
14.4
|
Medi 1997
|
15.7
|
Hydref 1997
|
17.3
|
Tachwedd 1997
|
16.4
|
Rhagfyr 1997
|
15.0
|
Ionawr 1998
|
15.1
|
Chwefror 1998
|
14.4
|
Mawrth 1998
|
13.9
|
Ebrill 1998
|
14.7
|
Mai 1998
|
14.5
|
Mehefin 1998
|
13.3
|
Gorffennaf 1998
|
12.5
|
Awst 1998
|
11.6
|
Medi 1998
|
10.2
|
Hydref 1998
|
9.3
|
Tachwedd 1998
|
7.9
|
Rhagfyr 1998
|
8.3
|
Ionawr 1999
|
8.7
|
Chwefror 1999
|
8.4
|
Mawrth 1999
|
7.4
|
Ebrill 1999
|
8.2
|
Mai 1999
|
7.6
|
Mehefin 1999
|
8.9
|
Gorffennaf 1999
|
9.6
|
Awst 1999
|
11.0
|
Medi 1999
|
14.3
|
Hydref 1999
|
14.3
|
Tachwedd 1999
|
17.0
|
Rhagfyr 1999
|
19.3
|
Ionawr 2000
|
18.6
|
Chwefror 2000
|
20.0
|
Mawrth 2000
|
22.4
|
Ebrill 2000
|
23.4
|
Mai 2000
|
23.2
|
Mehefin 2000
|
23.9
|
Gorffennaf 2000
|
21.8
|
Awst 2000
|
20.6
|
Medi 2000
|
17.7
|
Hydref 2000
|
17.3
|
Tachwedd 2000
|
14.4
|
Rhagfyr 2000
|
13.2
|
Ionawr 2001
|
13.7
|
Chwefror 2001
|
12.7
|
Mawrth 2001
|
11.1
|
Ebrill 2001
|
10.3
|
Mai 2001
|
10.4
|
Mehefin 2001
|
10.0
|
Gorffennaf 2001
|
11.9
|
Awst 2001
|
12.2
|
Medi 2001
|
12.8
|
Hydref 2001
|
13.9
|
Tachwedd 2001
|
15.3
|
Rhagfyr 2001
|
14.6
|
Ionawr 2002
|
14.9
|
Chwefror 2002
|
15.6
|
Mawrth 2002
|
15.6
|
Ebrill 2002
|
14.3
|
Mai 2002
|
17.2
|
Mehefin 2002
|
17.5
|
Gorffennaf 2002
|
18.4
|
Awst 2002
|
20.4
|
Medi 2002
|
20.9
|
Hydref 2002
|
21.4
|
Tachwedd 2002
|
22.7
|
Rhagfyr 2002
|
23.4
|
Ionawr 2003
|
24.8
|
Chwefror 2003
|
23.9
|
Mawrth 2003
|
23.5
|
Ebrill 2003
|
22.4
|
Mai 2003
|
20.1
|
Mehefin 2003
|
18.1
|
Gorffennaf 2003
|
16.8
|
Awst 2003
|
13.5
|
Medi 2003
|
12.0
|
Hydref 2003
|
12.8
|
Tachwedd 2003
|
11.3
|
Rhagfyr 2003
|
10.9
|
Ionawr 2004
|
9.5
|
Chwefror 2004
|
10.5
|
Mawrth 2004
|
10.4
|
Ebrill 2004
|
11.7
|
Mai 2004
|
12.4
|
Mehefin 2004
|
12.7
|
Gorffennaf 2004
|
12.9
|
Awst 2004
|
14.4
|
Medi 2004
|
14.5
|
Hydref 2004
|
12.3
|
Tachwedd 2004
|
12.8
|
Rhagfyr 2004
|
11.4
|
Ionawr 2005
|
9.8
|
Chwefror 2005
|
8.9
|
Mawrth 2005
|
8.3
|
Ebrill 2005
|
7.1
|
Mai 2005
|
5.2
|
Mehefin 2005
|
5.2
|
Gorffennaf 2005
|
3.9
|
Awst 2005
|
2.3
|
Medi 2005
|
3.2
|
Hydref 2005
|
1.9
|
Tachwedd 2005
|
1.8
|
Rhagfyr 2005
|
2.7
|
Ionawr 2006
|
3.8
|
Chwefror 2006
|
4.2
|
Mawrth 2006
|
4.0
|
Ebrill 2006
|
4.7
|
Mai 2006
|
5.5
|
Mehefin 2006
|
5.8
|
Gorffennaf 2006
|
6.9
|
Awst 2006
|
7.0
|
Medi 2006
|
7.3
|
Hydref 2006
|
8.4
|
Tachwedd 2006
|
8.5
|
Rhagfyr 2006
|
10.0
|
Ionawr 2007
|
10.1
|
Chwefror 2007
|
8.8
|
Mawrth 2007
|
10.0
|
Ebrill 2007
|
10.6
|
Mai 2007
|
11.3
|
Mehefin 2007
|
10.9
|
Gorffennaf 2007
|
11.5
|
Awst 2007
|
11.1
|
Medi 2007
|
11.0
|
Hydref 2007
|
11.4
|
Tachwedd 2007
|
10.0
|
Rhagfyr 2007
|
7.3
|
Ionawr 2008
|
6.0
|
Chwefror 2008
|
5.6
|
Mawrth 2008
|
4.9
|
Ebrill 2008
|
2.0
|
Mai 2008
|
0.5
|
Mehefin 2008
|
-1.2
|
Gorffennaf 2008
|
-4.0
|
Awst 2008
|
-7.5
|
Medi 2008
|
-10.0
|
Hydref 2008
|
-13.2
|
Tachwedd 2008
|
-15.4
|
Rhagfyr 2008
|
-14.9
|
Ionawr 2009
|
-17.9
|
Chwefror 2009
|
-17.6
|
Mawrth 2009
|
-18.6
|
Ebrill 2009
|
-16.5
|
Mai 2009
|
-15.0
|
Mehefin 2009
|
-12.8
|
Gorffennaf 2009
|
-10.6
|
Awst 2009
|
-5.2
|
Medi 2009
|
-1.8
|
Hydref 2009
|
1.8
|
Tachwedd 2009
|
6.4
|
Rhagfyr 2009
|
6.6
|
Ionawr 2010
|
14.1
|
Chwefror 2010
|
14.6
|
Mawrth 2010
|
14.2
|
Ebrill 2010
|
13.4
|
Mai 2010
|
12.3
|
Mehefin 2010
|
11.9
|
Gorffennaf 2010
|
11.0
|
Awst 2010
|
7.9
|
Medi 2010
|
7.2
|
Hydref 2010
|
4.8
|
Tachwedd 2010
|
2.2
|
Rhagfyr 2010
|
2.1
|
Ionawr 2011
|
-1.5
|
Chwefror 2011
|
-1.3
|
Mawrth 2011
|
-1.1
|
Ebrill 2011
|
-0.7
|
Mai 2011
|
-1.4
|
Mehefin 2011
|
-2.1
|
Gorffennaf 2011
|
-1.5
|
Awst 2011
|
-1.8
|
Medi 2011
|
-2.1
|
Hydref 2011
|
-1.7
|
Tachwedd 2011
|
-0.0
|
Rhagfyr 2011
|
0.1
|
Ionawr 2012
|
1.0
|
Chwefror 2012
|
1.2
|
Mawrth 2012
|
2.9
|
Ebrill 2012
|
2.4
|
Mai 2012
|
2.6
|
Mehefin 2012
|
3.5
|
Gorffennaf 2012
|
2.5
|
Awst 2012
|
4.4
|
Medi 2012
|
4.0
|
Hydref 2012
|
3.9
|
Tachwedd 2012
|
3.5
|
Rhagfyr 2012
|
3.9
|
Ionawr 2013
|
3.8
|
Chwefror 2013
|
3.1
|
Mawrth 2013
|
2.4
|
Ebrill 2013
|
3.1
|
Mai 2013
|
2.8
|
Mehefin 2013
|
2.8
|
Gorffennaf 2013
|
3.5
|
Awst 2013
|
3.0
|
Medi 2013
|
3.0
|
Hydref 2013
|
4.5
|
Tachwedd 2013
|
5.6
|
Rhagfyr 2013
|
5.8
|
Ionawr 2014
|
7.0
|
Chwefror 2014
|
7.8
|
Mawrth 2014
|
8.5
|
Ebrill 2014
|
8.6
|
Mai 2014
|
10.5
|
Mehefin 2014
|
9.6
|
Gorffennaf 2014
|
10.6
|
Awst 2014
|
11.6
|
Medi 2014
|
12.3
|
Hydref 2014
|
12.4
|
Tachwedd 2014
|
10.7
|
Rhagfyr 2014
|
10.3
|
Ionawr 2015
|
10.1
|
Chwefror 2015
|
9.6
|
Mawrth 2015
|
8.2
|
Ebrill 2015
|
8.3
|
Mai 2015
|
7.4
|
Mehefin 2015
|
9.0
|
Gorffennaf 2015
|
8.2
|
Awst 2015
|
8.4
|
Medi 2015
|
7.6
|
Hydref 2015
|
9.0
|
Tachwedd 2015
|
9.8
|
Rhagfyr 2015
|
10.3
|
Ionawr 2016
|
10.8
|
Chwefror 2016
|
12.0
|
Mawrth 2016
|
13.6
|
Ebrill 2016
|
11.5
|
Mai 2016
|
11.7
|
Mehefin 2016
|
10.6
|
Gorffennaf 2016
|
10.8
|
Awst 2016
|
9.6
|
Medi 2016
|
8.1
|
Hydref 2016
|
6.8
|
Tachwedd 2016
|
6.1
|
Rhagfyr 2016
|
5.9
|
Ionawr 2017
|
6.5
|
Chwefror 2017
|
4.4
|
Mawrth 2017
|
3.0
|
Ebrill 2017
|
4.2
|
Mai 2017
|
3.3
|
Mehefin 2017
|
3.8
|
Gorffennaf 2017
|
3.1
|
Awst 2017
|
4.0
|
Medi 2017
|
4.8
|
Hydref 2017
|
4.9
|
Tachwedd 2017
|
4.5
|
Rhagfyr 2017
|
4.1
|
Ionawr 2018
|
2.6
|
Chwefror 2018
|
4.0
|
Mawrth 2018
|
3.9
|
Ebrill 2018
|
3.7
|
Mai 2018
|
2.9
|
Mehefin 2018
|
2.3
|
Gorffennaf 2018
|
2.4
|
Awst 2018
|
1.8
|
Medi 2018
|
1.9
|
Hydref 2018
|
0.9
|
Tachwedd 2018
|
1.4
|
Rhagfyr 2018
|
-0.0
|
Ionawr 2019
|
0.3
|
Chwefror 2019
|
-0.4
|
Mawrth 2019
|
-1.0
|
Ebrill 2019
|
-1.0
|
Mai 2019
|
-0.3
|
Mehefin 2019
|
-0.9
|
Gorffennaf 2019
|
-1.1
|
Awst 2019
|
-1.4
|
Medi 2019
|
-0.5
|
Hydref 2019
|
-0.3
|
Tachwedd 2019
|
-0.3
|
Rhagfyr 2019
|
0.7
|
Ionawr 2020
|
1.0
|
Dyddiad
|
Tai teras
|
Ionawr 1995
|
|
Chwefror 1995
|
0.2
|
Mawrth 1995
|
1.0
|
Ebrill 1995
|
0.3
|
Mai 1995
|
-0.3
|
Mehefin 1995
|
1.4
|
Gorffennaf 1995
|
-0.4
|
Awst 1995
|
-0.6
|
Medi 1995
|
-0.7
|
Hydref 1995
|
-1.9
|
Tachwedd 1995
|
1.1
|
Rhagfyr 1995
|
0.8
|
Ionawr 1996
|
-1.2
|
Chwefror 1996
|
0.1
|
Mawrth 1996
|
-0.1
|
Ebrill 1996
|
2.3
|
Mai 1996
|
0.9
|
Mehefin 1996
|
0.2
|
Gorffennaf 1996
|
1.3
|
Awst 1996
|
0.8
|
Medi 1996
|
-0.4
|
Hydref 1996
|
-0.4
|
Tachwedd 1996
|
1.8
|
Rhagfyr 1996
|
1.2
|
Ionawr 1997
|
-0.0
|
Chwefror 1997
|
0.7
|
Mawrth 1997
|
2.3
|
Ebrill 1997
|
1.4
|
Mai 1997
|
1.7
|
Mehefin 1997
|
1.6
|
Gorffennaf 1997
|
1.7
|
Awst 1997
|
1.9
|
Medi 1997
|
0.7
|
Hydref 1997
|
0.9
|
Tachwedd 1997
|
1.0
|
Rhagfyr 1997
|
0.0
|
Ionawr 1998
|
0.1
|
Chwefror 1998
|
0.1
|
Mawrth 1998
|
1.8
|
Ebrill 1998
|
2.1
|
Mai 1998
|
1.6
|
Mehefin 1998
|
0.5
|
Gorffennaf 1998
|
1.0
|
Awst 1998
|
1.1
|
Medi 1998
|
-0.6
|
Hydref 1998
|
0.2
|
Tachwedd 1998
|
-0.3
|
Rhagfyr 1998
|
0.3
|
Ionawr 1999
|
0.5
|
Chwefror 1999
|
-0.2
|
Mawrth 1999
|
0.9
|
Ebrill 1999
|
2.8
|
Mai 1999
|
1.0
|
Mehefin 1999
|
1.8
|
Gorffennaf 1999
|
1.6
|
Awst 1999
|
2.5
|
Medi 1999
|
2.4
|
Hydref 1999
|
0.2
|
Tachwedd 1999
|
2.0
|
Rhagfyr 1999
|
2.3
|
Ionawr 2000
|
-0.1
|
Chwefror 2000
|
1.1
|
Mawrth 2000
|
2.9
|
Ebrill 2000
|
3.7
|
Mai 2000
|
0.8
|
Mehefin 2000
|
2.3
|
Gorffennaf 2000
|
-0.1
|
Awst 2000
|
1.4
|
Medi 2000
|
-0.1
|
Hydref 2000
|
-0.1
|
Tachwedd 2000
|
-0.5
|
Rhagfyr 2000
|
1.2
|
Ionawr 2001
|
0.3
|
Chwefror 2001
|
0.2
|
Mawrth 2001
|
1.4
|
Ebrill 2001
|
2.9
|
Mai 2001
|
0.9
|
Mehefin 2001
|
2.0
|
Gorffennaf 2001
|
1.6
|
Awst 2001
|
1.7
|
Medi 2001
|
0.4
|
Hydref 2001
|
0.9
|
Tachwedd 2001
|
0.7
|
Rhagfyr 2001
|
0.6
|
Ionawr 2002
|
0.6
|
Chwefror 2002
|
0.8
|
Mawrth 2002
|
1.5
|
Ebrill 2002
|
1.7
|
Mai 2002
|
3.5
|
Mehefin 2002
|
2.2
|
Gorffennaf 2002
|
2.4
|
Awst 2002
|
3.4
|
Medi 2002
|
0.8
|
Hydref 2002
|
1.3
|
Tachwedd 2002
|
1.8
|
Rhagfyr 2002
|
1.2
|
Ionawr 2003
|
1.8
|
Chwefror 2003
|
0.0
|
Mawrth 2003
|
1.2
|
Ebrill 2003
|
0.9
|
Mai 2003
|
1.5
|
Mehefin 2003
|
0.6
|
Gorffennaf 2003
|
1.3
|
Awst 2003
|
0.5
|
Medi 2003
|
-0.6
|
Hydref 2003
|
2.1
|
Tachwedd 2003
|
0.5
|
Rhagfyr 2003
|
0.9
|
Ionawr 2004
|
0.5
|
Chwefror 2004
|
0.9
|
Mawrth 2004
|
1.1
|
Ebrill 2004
|
2.0
|
Mai 2004
|
2.1
|
Mehefin 2004
|
0.8
|
Gorffennaf 2004
|
1.5
|
Awst 2004
|
1.8
|
Medi 2004
|
-0.5
|
Hydref 2004
|
0.1
|
Tachwedd 2004
|
0.9
|
Rhagfyr 2004
|
-0.4
|
Ionawr 2005
|
-1.0
|
Chwefror 2005
|
0.1
|
Mawrth 2005
|
0.6
|
Ebrill 2005
|
0.8
|
Mai 2005
|
0.3
|
Mehefin 2005
|
0.8
|
Gorffennaf 2005
|
0.2
|
Awst 2005
|
0.3
|
Medi 2005
|
0.4
|
Hydref 2005
|
-1.1
|
Tachwedd 2005
|
0.8
|
Rhagfyr 2005
|
0.4
|
Ionawr 2006
|
0.1
|
Chwefror 2006
|
0.5
|
Mawrth 2006
|
0.4
|
Ebrill 2006
|
1.5
|
Mai 2006
|
1.0
|
Mehefin 2006
|
1.1
|
Gorffennaf 2006
|
1.3
|
Awst 2006
|
0.3
|
Medi 2006
|
0.7
|
Hydref 2006
|
-0.1
|
Tachwedd 2006
|
0.9
|
Rhagfyr 2006
|
1.8
|
Ionawr 2007
|
0.2
|
Chwefror 2007
|
-0.7
|
Mawrth 2007
|
1.6
|
Ebrill 2007
|
2.0
|
Mai 2007
|
1.7
|
Mehefin 2007
|
0.7
|
Gorffennaf 2007
|
1.9
|
Awst 2007
|
0.0
|
Medi 2007
|
0.5
|
Hydref 2007
|
0.3
|
Tachwedd 2007
|
-0.4
|
Rhagfyr 2007
|
-0.6
|
Ionawr 2008
|
-1.1
|
Chwefror 2008
|
-1.1
|
Mawrth 2008
|
0.9
|
Ebrill 2008
|
-0.8
|
Mai 2008
|
0.2
|
Mehefin 2008
|
-1.0
|
Gorffennaf 2008
|
-1.0
|
Awst 2008
|
-3.7
|
Medi 2008
|
-2.2
|
Hydref 2008
|
-3.2
|
Tachwedd 2008
|
-3.0
|
Rhagfyr 2008
|
-0.1
|
Ionawr 2009
|
-4.5
|
Chwefror 2009
|
-0.7
|
Mawrth 2009
|
-0.3
|
Ebrill 2009
|
1.7
|
Mai 2009
|
1.9
|
Mehefin 2009
|
1.6
|
Gorffennaf 2009
|
1.5
|
Awst 2009
|
2.2
|
Medi 2009
|
1.3
|
Hydref 2009
|
0.3
|
Tachwedd 2009
|
1.4
|
Rhagfyr 2009
|
0.2
|
Ionawr 2010
|
2.2
|
Chwefror 2010
|
-0.2
|
Mawrth 2010
|
-0.7
|
Ebrill 2010
|
1.0
|
Mai 2010
|
0.9
|
Mehefin 2010
|
1.2
|
Gorffennaf 2010
|
0.7
|
Awst 2010
|
-0.7
|
Medi 2010
|
0.6
|
Hydref 2010
|
-1.9
|
Tachwedd 2010
|
-1.1
|
Rhagfyr 2010
|
0.1
|
Ionawr 2011
|
-1.5
|
Chwefror 2011
|
0.0
|
Mawrth 2011
|
-0.5
|
Ebrill 2011
|
1.4
|
Mai 2011
|
0.2
|
Mehefin 2011
|
0.6
|
Gorffennaf 2011
|
1.3
|
Awst 2011
|
-1.0
|
Medi 2011
|
0.4
|
Hydref 2011
|
-1.5
|
Tachwedd 2011
|
0.6
|
Rhagfyr 2011
|
0.2
|
Ionawr 2012
|
-0.7
|
Chwefror 2012
|
0.3
|
Mawrth 2012
|
1.2
|
Ebrill 2012
|
0.9
|
Mai 2012
|
0.4
|
Mehefin 2012
|
1.5
|
Gorffennaf 2012
|
0.3
|
Awst 2012
|
0.8
|
Medi 2012
|
0.1
|
Hydref 2012
|
-1.7
|
Tachwedd 2012
|
0.2
|
Rhagfyr 2012
|
0.7
|
Ionawr 2013
|
-0.8
|
Chwefror 2013
|
-0.4
|
Mawrth 2013
|
0.5
|
Ebrill 2013
|
1.6
|
Mai 2013
|
0.1
|
Mehefin 2013
|
1.5
|
Gorffennaf 2013
|
1.0
|
Awst 2013
|
0.3
|
Medi 2013
|
0.2
|
Hydref 2013
|
-0.3
|
Tachwedd 2013
|
1.3
|
Rhagfyr 2013
|
0.8
|
Ionawr 2014
|
0.3
|
Chwefror 2014
|
0.3
|
Mawrth 2014
|
1.2
|
Ebrill 2014
|
1.7
|
Mai 2014
|
1.8
|
Mehefin 2014
|
0.6
|
Gorffennaf 2014
|
1.9
|
Awst 2014
|
1.2
|
Medi 2014
|
0.7
|
Hydref 2014
|
-0.2
|
Tachwedd 2014
|
-0.2
|
Rhagfyr 2014
|
0.5
|
Ionawr 2015
|
0.1
|
Chwefror 2015
|
-0.1
|
Mawrth 2015
|
-0.1
|
Ebrill 2015
|
1.8
|
Mai 2015
|
1.0
|
Mehefin 2015
|
2.1
|
Gorffennaf 2015
|
1.3
|
Awst 2015
|
1.3
|
Medi 2015
|
0.1
|
Hydref 2015
|
1.0
|
Tachwedd 2015
|
0.5
|
Rhagfyr 2015
|
1.0
|
Ionawr 2016
|
0.5
|
Chwefror 2016
|
0.9
|
Mawrth 2016
|
1.3
|
Ebrill 2016
|
-0.1
|
Mai 2016
|
1.2
|
Mehefin 2016
|
1.0
|
Gorffennaf 2016
|
1.4
|
Awst 2016
|
0.2
|
Medi 2016
|
-1.3
|
Hydref 2016
|
-0.2
|
Tachwedd 2016
|
-0.2
|
Rhagfyr 2016
|
0.8
|
Ionawr 2017
|
1.1
|
Chwefror 2017
|
-1.0
|
Mawrth 2017
|
0.0
|
Ebrill 2017
|
1.1
|
Mai 2017
|
0.4
|
Mehefin 2017
|
1.4
|
Gorffennaf 2017
|
0.8
|
Awst 2017
|
1.1
|
Medi 2017
|
-0.6
|
Hydref 2017
|
-0.1
|
Tachwedd 2017
|
-0.6
|
Rhagfyr 2017
|
0.4
|
Ionawr 2018
|
-0.4
|
Chwefror 2018
|
0.4
|
Mawrth 2018
|
-0.1
|
Ebrill 2018
|
0.9
|
Mai 2018
|
-0.4
|
Mehefin 2018
|
0.8
|
Gorffennaf 2018
|
0.9
|
Awst 2018
|
0.6
|
Medi 2018
|
-0.5
|
Hydref 2018
|
-1.1
|
Tachwedd 2018
|
-0.0
|
Rhagfyr 2018
|
-1.0
|
Ionawr 2019
|
-0.1
|
Chwefror 2019
|
-0.3
|
Mawrth 2019
|
-0.6
|
Ebrill 2019
|
0.8
|
Mai 2019
|
0.3
|
Mehefin 2019
|
0.2
|
Gorffennaf 2019
|
0.7
|
Awst 2019
|
0.3
|
Medi 2019
|
0.4
|
Hydref 2019
|
-0.9
|
Tachwedd 2019
|
-0.0
|
Rhagfyr 2019
|
0.0
|
Ionawr 2020
|
0.2
|
Dyddiad
|
Tai teras
|
Ionawr 1995
|
23.2
|
Chwefror 1995
|
23.2
|
Mawrth 1995
|
23.5
|
Ebrill 1995
|
23.5
|
Mai 1995
|
23.5
|
Mehefin 1995
|
23.8
|
Gorffennaf 1995
|
23.7
|
Awst 1995
|
23.6
|
Medi 1995
|
23.4
|
Hydref 1995
|
23.0
|
Tachwedd 1995
|
23.2
|
Rhagfyr 1995
|
23.4
|
Ionawr 1996
|
23.1
|
Chwefror 1996
|
23.1
|
Mawrth 1996
|
23.1
|
Ebrill 1996
|
23.6
|
Mai 1996
|
23.8
|
Mehefin 1996
|
23.9
|
Gorffennaf 1996
|
24.2
|
Awst 1996
|
24.4
|
Medi 1996
|
24.3
|
Hydref 1996
|
24.2
|
Tachwedd 1996
|
24.6
|
Rhagfyr 1996
|
24.9
|
Ionawr 1997
|
24.9
|
Chwefror 1997
|
25.1
|
Mawrth 1997
|
25.7
|
Ebrill 1997
|
26.0
|
Mai 1997
|
26.5
|
Mehefin 1997
|
26.9
|
Gorffennaf 1997
|
27.4
|
Awst 1997
|
27.9
|
Medi 1997
|
28.1
|
Hydref 1997
|
28.4
|
Tachwedd 1997
|
28.7
|
Rhagfyr 1997
|
28.7
|
Ionawr 1998
|
28.7
|
Chwefror 1998
|
28.7
|
Mawrth 1998
|
29.3
|
Ebrill 1998
|
29.9
|
Mai 1998
|
30.3
|
Mehefin 1998
|
30.5
|
Gorffennaf 1998
|
30.8
|
Awst 1998
|
31.1
|
Medi 1998
|
31.0
|
Hydref 1998
|
31.0
|
Tachwedd 1998
|
30.9
|
Rhagfyr 1998
|
31.0
|
Ionawr 1999
|
31.2
|
Chwefror 1999
|
31.1
|
Mawrth 1999
|
31.4
|
Ebrill 1999
|
32.3
|
Mai 1999
|
32.6
|
Mehefin 1999
|
33.2
|
Gorffennaf 1999
|
33.7
|
Awst 1999
|
34.6
|
Medi 1999
|
35.4
|
Hydref 1999
|
35.5
|
Tachwedd 1999
|
36.2
|
Rhagfyr 1999
|
37.0
|
Ionawr 2000
|
37.0
|
Chwefror 2000
|
37.4
|
Mawrth 2000
|
38.5
|
Ebrill 2000
|
39.9
|
Mai 2000
|
40.2
|
Mehefin 2000
|
41.2
|
Gorffennaf 2000
|
41.1
|
Awst 2000
|
41.7
|
Medi 2000
|
41.6
|
Hydref 2000
|
41.6
|
Tachwedd 2000
|
41.4
|
Rhagfyr 2000
|
41.9
|
Ionawr 2001
|
42.0
|
Chwefror 2001
|
42.1
|
Mawrth 2001
|
42.8
|
Ebrill 2001
|
44.0
|
Mai 2001
|
44.4
|
Mehefin 2001
|
45.3
|
Gorffennaf 2001
|
46.0
|
Awst 2001
|
46.8
|
Medi 2001
|
47.0
|
Hydref 2001
|
47.4
|
Tachwedd 2001
|
47.7
|
Rhagfyr 2001
|
48.0
|
Ionawr 2002
|
48.3
|
Chwefror 2002
|
48.7
|
Mawrth 2002
|
49.4
|
Ebrill 2002
|
50.3
|
Mai 2002
|
52.0
|
Mehefin 2002
|
53.2
|
Gorffennaf 2002
|
54.5
|
Awst 2002
|
56.3
|
Medi 2002
|
56.8
|
Hydref 2002
|
57.5
|
Tachwedd 2002
|
58.6
|
Rhagfyr 2002
|
59.3
|
Ionawr 2003
|
60.3
|
Chwefror 2003
|
60.3
|
Mawrth 2003
|
61.0
|
Ebrill 2003
|
61.6
|
Mai 2003
|
62.5
|
Mehefin 2003
|
62.8
|
Gorffennaf 2003
|
63.6
|
Awst 2003
|
64.0
|
Medi 2003
|
63.6
|
Hydref 2003
|
64.9
|
Tachwedd 2003
|
65.2
|
Rhagfyr 2003
|
65.8
|
Ionawr 2004
|
66.1
|
Chwefror 2004
|
66.7
|
Mawrth 2004
|
67.4
|
Ebrill 2004
|
68.8
|
Mai 2004
|
70.2
|
Mehefin 2004
|
70.8
|
Gorffennaf 2004
|
71.8
|
Awst 2004
|
73.2
|
Medi 2004
|
72.8
|
Hydref 2004
|
72.9
|
Tachwedd 2004
|
73.6
|
Rhagfyr 2004
|
73.3
|
Ionawr 2005
|
72.5
|
Chwefror 2005
|
72.6
|
Mawrth 2005
|
73.0
|
Ebrill 2005
|
73.6
|
Mai 2005
|
73.8
|
Mehefin 2005
|
74.5
|
Gorffennaf 2005
|
74.6
|
Awst 2005
|
74.8
|
Medi 2005
|
75.1
|
Hydref 2005
|
74.3
|
Tachwedd 2005
|
74.9
|
Rhagfyr 2005
|
75.2
|
Ionawr 2006
|
75.3
|
Chwefror 2006
|
75.6
|
Mawrth 2006
|
76.0
|
Ebrill 2006
|
77.1
|
Mai 2006
|
77.9
|
Mehefin 2006
|
78.8
|
Gorffennaf 2006
|
79.8
|
Awst 2006
|
80.1
|
Medi 2006
|
80.6
|
Hydref 2006
|
80.5
|
Tachwedd 2006
|
81.2
|
Rhagfyr 2006
|
82.7
|
Ionawr 2007
|
82.9
|
Chwefror 2007
|
82.3
|
Mawrth 2007
|
83.6
|
Ebrill 2007
|
85.3
|
Mai 2007
|
86.7
|
Mehefin 2007
|
87.3
|
Gorffennaf 2007
|
88.9
|
Awst 2007
|
89.0
|
Medi 2007
|
89.4
|
Hydref 2007
|
89.7
|
Tachwedd 2007
|
89.3
|
Rhagfyr 2007
|
88.8
|
Ionawr 2008
|
87.8
|
Chwefror 2008
|
86.9
|
Mawrth 2008
|
87.7
|
Ebrill 2008
|
87.0
|
Mai 2008
|
87.1
|
Mehefin 2008
|
86.3
|
Gorffennaf 2008
|
85.4
|
Awst 2008
|
82.3
|
Medi 2008
|
80.5
|
Hydref 2008
|
77.9
|
Tachwedd 2008
|
75.6
|
Rhagfyr 2008
|
75.5
|
Ionawr 2009
|
72.1
|
Chwefror 2009
|
71.6
|
Mawrth 2009
|
71.4
|
Ebrill 2009
|
72.7
|
Mai 2009
|
74.1
|
Mehefin 2009
|
75.2
|
Gorffennaf 2009
|
76.3
|
Awst 2009
|
78.0
|
Medi 2009
|
79.0
|
Hydref 2009
|
79.3
|
Tachwedd 2009
|
80.4
|
Rhagfyr 2009
|
80.6
|
Ionawr 2010
|
82.3
|
Chwefror 2010
|
82.1
|
Mawrth 2010
|
81.6
|
Ebrill 2010
|
82.4
|
Mai 2010
|
83.2
|
Mehefin 2010
|
84.2
|
Gorffennaf 2010
|
84.7
|
Awst 2010
|
84.2
|
Medi 2010
|
84.7
|
Hydref 2010
|
83.1
|
Tachwedd 2010
|
82.2
|
Rhagfyr 2010
|
82.2
|
Ionawr 2011
|
81.0
|
Chwefror 2011
|
81.1
|
Mawrth 2011
|
80.7
|
Ebrill 2011
|
81.8
|
Mai 2011
|
82.0
|
Mehefin 2011
|
82.4
|
Gorffennaf 2011
|
83.5
|
Awst 2011
|
82.6
|
Medi 2011
|
82.9
|
Hydref 2011
|
81.7
|
Tachwedd 2011
|
82.2
|
Rhagfyr 2011
|
82.4
|
Ionawr 2012
|
81.8
|
Chwefror 2012
|
82.0
|
Mawrth 2012
|
83.0
|
Ebrill 2012
|
83.8
|
Mai 2012
|
84.1
|
Mehefin 2012
|
85.3
|
Gorffennaf 2012
|
85.6
|
Awst 2012
|
86.2
|
Medi 2012
|
86.3
|
Hydref 2012
|
84.8
|
Tachwedd 2012
|
85.0
|
Rhagfyr 2012
|
85.6
|
Ionawr 2013
|
84.9
|
Chwefror 2013
|
84.5
|
Mawrth 2013
|
84.9
|
Ebrill 2013
|
86.3
|
Mai 2013
|
86.4
|
Mehefin 2013
|
87.7
|
Gorffennaf 2013
|
88.6
|
Awst 2013
|
88.8
|
Medi 2013
|
88.9
|
Hydref 2013
|
88.7
|
Tachwedd 2013
|
89.8
|
Rhagfyr 2013
|
90.5
|
Ionawr 2014
|
90.8
|
Chwefror 2014
|
91.1
|
Mawrth 2014
|
92.2
|
Ebrill 2014
|
93.8
|
Mai 2014
|
95.5
|
Mehefin 2014
|
96.1
|
Gorffennaf 2014
|
98.0
|
Awst 2014
|
99.1
|
Medi 2014
|
99.9
|
Hydref 2014
|
99.6
|
Tachwedd 2014
|
99.4
|
Rhagfyr 2014
|
99.9
|
Ionawr 2015
|
100.0
|
Chwefror 2015
|
99.9
|
Mawrth 2015
|
99.7
|
Ebrill 2015
|
101.6
|
Mai 2015
|
102.6
|
Mehefin 2015
|
104.7
|
Gorffennaf 2015
|
106.0
|
Awst 2015
|
107.4
|
Medi 2015
|
107.5
|
Hydref 2015
|
108.6
|
Tachwedd 2015
|
109.1
|
Rhagfyr 2015
|
110.2
|
Ionawr 2016
|
110.8
|
Chwefror 2016
|
111.8
|
Mawrth 2016
|
113.3
|
Ebrill 2016
|
113.2
|
Mai 2016
|
114.6
|
Mehefin 2016
|
115.8
|
Gorffennaf 2016
|
117.4
|
Awst 2016
|
117.7
|
Medi 2016
|
116.2
|
Hydref 2016
|
115.9
|
Tachwedd 2016
|
115.7
|
Rhagfyr 2016
|
116.7
|
Ionawr 2017
|
118.0
|
Chwefror 2017
|
116.8
|
Mawrth 2017
|
116.8
|
Ebrill 2017
|
118.0
|
Mai 2017
|
118.5
|
Mehefin 2017
|
120.2
|
Gorffennaf 2017
|
121.1
|
Awst 2017
|
122.5
|
Medi 2017
|
121.8
|
Hydref 2017
|
121.6
|
Tachwedd 2017
|
120.9
|
Rhagfyr 2017
|
121.4
|
Ionawr 2018
|
121.0
|
Chwefror 2018
|
121.5
|
Mawrth 2018
|
121.3
|
Ebrill 2018
|
122.4
|
Mai 2018
|
121.9
|
Mehefin 2018
|
122.9
|
Gorffennaf 2018
|
124.0
|
Awst 2018
|
124.7
|
Medi 2018
|
124.1
|
Hydref 2018
|
122.7
|
Tachwedd 2018
|
122.7
|
Rhagfyr 2018
|
121.4
|
Ionawr 2019
|
121.3
|
Chwefror 2019
|
120.9
|
Mawrth 2019
|
120.2
|
Ebrill 2019
|
121.2
|
Mai 2019
|
121.5
|
Mehefin 2019
|
121.8
|
Gorffennaf 2019
|
122.7
|
Awst 2019
|
123.0
|
Medi 2019
|
123.5
|
Hydref 2019
|
122.3
|
Tachwedd 2019
|
122.3
|
Rhagfyr 2019
|
122.3
|
Ionawr 2020
|
122.5
|
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
Dyddiad
|
Prynwyr am y tro cyntaf
|
Cyn berchen-feddianwyr
|
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
|
173993.0
|
252118.0
|
Chwefror 2012
|
174268.0
|
252641.0
|
Mawrth 2012
|
176551.0
|
252687.0
|
Ebrill 2012
|
178588.0
|
258447.0
|
Mai 2012
|
179159.0
|
258513.0
|
Mehefin 2012
|
179974.0
|
259427.0
|
Gorffennaf 2012
|
181249.0
|
262691.0
|
Awst 2012
|
182116.0
|
263958.0
|
Medi 2012
|
182749.0
|
264526.0
|
Hydref 2012
|
179969.0
|
260406.0
|
Tachwedd 2012
|
179882.0
|
259826.0
|
Rhagfyr 2012
|
180804.0
|
261427.0
|
Ionawr 2013
|
179649.0
|
261161.0
|
Chwefror 2013
|
178919.0
|
259305.0
|
Mawrth 2013
|
180037.0
|
260991.0
|
Ebrill 2013
|
182099.0
|
263955.0
|
Mai 2013
|
182666.0
|
264359.0
|
Mehefin 2013
|
184884.0
|
267336.0
|
Gorffennaf 2013
|
186640.0
|
270917.0
|
Awst 2013
|
187208.0
|
271821.0
|
Medi 2013
|
187678.0
|
272589.0
|
Hydref 2013
|
187518.0
|
273030.0
|
Tachwedd 2013
|
189775.0
|
274638.0
|
Rhagfyr 2013
|
191741.0
|
276196.0
|
Ionawr 2014
|
192551.0
|
279142.0
|
Chwefror 2014
|
193214.0
|
279219.0
|
Mawrth 2014
|
195237.0
|
281271.0
|
Ebrill 2014
|
198017.0
|
285774.0
|
Mai 2014
|
201652.0
|
290564.0
|
Mehefin 2014
|
203419.0
|
292820.0
|
Gorffennaf 2014
|
206398.0
|
298125.0
|
Awst 2014
|
209096.0
|
302363.0
|
Medi 2014
|
210956.0
|
304300.0
|
Hydref 2014
|
211040.0
|
304869.0
|
Tachwedd 2014
|
210764.0
|
304091.0
|
Rhagfyr 2014
|
211972.0
|
305353.0
|
Ionawr 2015
|
212187.0
|
306337.0
|
Chwefror 2015
|
211796.0
|
306172.0
|
Mawrth 2015
|
212154.0
|
306831.0
|
Ebrill 2015
|
215154.0
|
310617.0
|
Mai 2015
|
217483.0
|
313385.0
|
Mehefin 2015
|
220708.0
|
318141.0
|
Gorffennaf 2015
|
224133.0
|
323806.0
|
Awst 2015
|
226907.0
|
327872.0
|
Medi 2015
|
227438.0
|
329295.0
|
Hydref 2015
|
229438.0
|
331379.0
|
Tachwedd 2015
|
230962.0
|
333874.0
|
Rhagfyr 2015
|
233465.0
|
336847.0
|
Ionawr 2016
|
234911.0
|
340036.0
|
Chwefror 2016
|
236917.0
|
341843.0
|
Mawrth 2016
|
240414.0
|
347318.0
|
Ebrill 2016
|
239622.0
|
343305.0
|
Mai 2016
|
243136.0
|
346667.0
|
Mehefin 2016
|
245557.0
|
351883.0
|
Gorffennaf 2016
|
248400.0
|
356741.0
|
Awst 2016
|
249376.0
|
357566.0
|
Medi 2016
|
246730.0
|
355181.0
|
Hydref 2016
|
247386.0
|
355640.0
|
Tachwedd 2016
|
246929.0
|
355831.0
|
Rhagfyr 2016
|
248678.0
|
356703.0
|
Ionawr 2017
|
251035.0
|
361573.0
|
Chwefror 2017
|
250011.0
|
356850.0
|
Mawrth 2017
|
249613.0
|
358141.0
|
Ebrill 2017
|
251976.0
|
361935.0
|
Mai 2017
|
254620.0
|
362542.0
|
Mehefin 2017
|
256499.0
|
366693.0
|
Gorffennaf 2017
|
258664.0
|
369865.0
|
Awst 2017
|
260094.0
|
372372.0
|
Medi 2017
|
259228.0
|
372325.0
|
Hydref 2017
|
258682.0
|
371849.0
|
Tachwedd 2017
|
257796.0
|
369037.0
|
Rhagfyr 2017
|
257923.0
|
369962.0
|
Ionawr 2018
|
257745.0
|
370662.0
|
Chwefror 2018
|
258278.0
|
370860.0
|
Mawrth 2018
|
256977.0
|
369248.0
|
Ebrill 2018
|
258178.0
|
370934.0
|
Mai 2018
|
257993.0
|
372167.0
|
Mehefin 2018
|
260524.0
|
375142.0
|
Gorffennaf 2018
|
261726.0
|
378855.0
|
Awst 2018
|
263052.0
|
379306.0
|
Medi 2018
|
261695.0
|
378815.0
|
Hydref 2018
|
260038.0
|
375331.0
|
Tachwedd 2018
|
258750.0
|
374322.0
|
Rhagfyr 2018
|
257846.0
|
370838.0
|
Ionawr 2019
|
257532.0
|
373592.0
|
Chwefror 2019
|
256521.0
|
370237.0
|
Mawrth 2019
|
254165.0
|
366780.0
|
Ebrill 2019
|
255657.0
|
368763.0
|
Mai 2019
|
255087.0
|
368045.0
|
Mehefin 2019
|
257009.0
|
371226.0
|
Gorffennaf 2019
|
258888.0
|
372566.0
|
Awst 2019
|
257643.0
|
374527.0
|
Medi 2019
|
259322.0
|
374653.0
|
Hydref 2019
|
257767.0
|
373418.0
|
Tachwedd 2019
|
257241.0
|
373907.0
|
Rhagfyr 2019
|
257416.0
|
371673.0
|
Ionawr 2020
|
257345.0
|
372690.0
|
Dyddiad
|
Prynwyr am y tro cyntaf
|
Cyn berchen-feddianwyr
|
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
|
3.2
|
3.6
|
Chwefror 2013
|
2.7
|
2.6
|
Mawrth 2013
|
2.0
|
3.3
|
Ebrill 2013
|
2.0
|
2.1
|
Mai 2013
|
2.0
|
2.3
|
Mehefin 2013
|
2.7
|
3.0
|
Gorffennaf 2013
|
3.0
|
3.1
|
Awst 2013
|
2.8
|
3.0
|
Medi 2013
|
2.7
|
3.0
|
Hydref 2013
|
4.2
|
4.8
|
Tachwedd 2013
|
5.5
|
5.7
|
Rhagfyr 2013
|
6.0
|
5.6
|
Ionawr 2014
|
7.2
|
6.9
|
Chwefror 2014
|
8.0
|
7.7
|
Mawrth 2014
|
8.4
|
7.8
|
Ebrill 2014
|
8.7
|
8.3
|
Mai 2014
|
10.4
|
9.9
|
Mehefin 2014
|
10.0
|
9.5
|
Gorffennaf 2014
|
10.6
|
10.0
|
Awst 2014
|
11.7
|
11.2
|
Medi 2014
|
12.4
|
11.6
|
Hydref 2014
|
12.5
|
11.7
|
Tachwedd 2014
|
11.1
|
10.7
|
Rhagfyr 2014
|
10.6
|
10.6
|
Ionawr 2015
|
10.2
|
9.7
|
Chwefror 2015
|
9.6
|
9.6
|
Mawrth 2015
|
8.7
|
9.1
|
Ebrill 2015
|
8.6
|
8.7
|
Mai 2015
|
7.8
|
7.8
|
Mehefin 2015
|
8.5
|
8.6
|
Gorffennaf 2015
|
8.6
|
8.6
|
Awst 2015
|
8.5
|
8.4
|
Medi 2015
|
7.8
|
8.2
|
Hydref 2015
|
8.7
|
8.7
|
Tachwedd 2015
|
9.6
|
9.8
|
Rhagfyr 2015
|
10.1
|
10.3
|
Ionawr 2016
|
10.7
|
11.0
|
Chwefror 2016
|
11.9
|
11.6
|
Mawrth 2016
|
13.3
|
13.2
|
Ebrill 2016
|
11.4
|
10.5
|
Mai 2016
|
11.8
|
10.6
|
Mehefin 2016
|
11.3
|
10.6
|
Gorffennaf 2016
|
10.8
|
10.2
|
Awst 2016
|
9.9
|
9.1
|
Medi 2016
|
8.5
|
7.9
|
Hydref 2016
|
7.8
|
7.3
|
Tachwedd 2016
|
6.9
|
6.6
|
Rhagfyr 2016
|
6.5
|
5.9
|
Ionawr 2017
|
6.9
|
6.3
|
Chwefror 2017
|
5.5
|
4.4
|
Mawrth 2017
|
3.8
|
3.1
|
Ebrill 2017
|
5.2
|
5.4
|
Mai 2017
|
4.7
|
4.6
|
Mehefin 2017
|
4.5
|
4.2
|
Gorffennaf 2017
|
4.1
|
3.7
|
Awst 2017
|
4.3
|
4.1
|
Medi 2017
|
5.1
|
4.8
|
Hydref 2017
|
4.6
|
4.6
|
Tachwedd 2017
|
4.4
|
3.7
|
Rhagfyr 2017
|
3.7
|
3.7
|
Ionawr 2018
|
2.7
|
2.5
|
Chwefror 2018
|
3.3
|
3.9
|
Mawrth 2018
|
3.0
|
3.1
|
Ebrill 2018
|
2.5
|
2.5
|
Mai 2018
|
1.3
|
2.6
|
Mehefin 2018
|
1.6
|
2.3
|
Gorffennaf 2018
|
1.2
|
2.4
|
Awst 2018
|
1.1
|
1.9
|
Medi 2018
|
1.0
|
1.7
|
Hydref 2018
|
0.5
|
0.9
|
Tachwedd 2018
|
0.4
|
1.4
|
Rhagfyr 2018
|
-0.0
|
0.2
|
Ionawr 2019
|
-0.1
|
0.8
|
Chwefror 2019
|
-0.7
|
-0.2
|
Mawrth 2019
|
-1.1
|
-0.7
|
Ebrill 2019
|
-1.0
|
-0.6
|
Mai 2019
|
-1.1
|
-1.1
|
Mehefin 2019
|
-1.4
|
-1.0
|
Gorffennaf 2019
|
-1.1
|
-1.7
|
Awst 2019
|
-2.1
|
-1.3
|
Medi 2019
|
-0.9
|
-1.1
|
Hydref 2019
|
-0.9
|
-0.5
|
Tachwedd 2019
|
-0.6
|
-0.1
|
Rhagfyr 2019
|
-0.2
|
0.2
|
Ionawr 2020
|
-0.1
|
-0.2
|
Dyddiad
|
Prynwyr am y tro cyntaf
|
Cyn berchen-feddianwyr
|
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
|
0.2
|
0.2
|
Mawrth 2012
|
1.3
|
0.0
|
Ebrill 2012
|
1.2
|
2.3
|
Mai 2012
|
0.3
|
0.0
|
Mehefin 2012
|
0.5
|
0.4
|
Gorffennaf 2012
|
0.7
|
1.3
|
Awst 2012
|
0.5
|
0.5
|
Medi 2012
|
0.4
|
0.2
|
Hydref 2012
|
-1.5
|
-1.6
|
Tachwedd 2012
|
-0.1
|
-0.2
|
Rhagfyr 2012
|
0.5
|
0.6
|
Ionawr 2013
|
-0.6
|
-0.1
|
Chwefror 2013
|
-0.4
|
-0.7
|
Mawrth 2013
|
0.6
|
0.6
|
Ebrill 2013
|
1.2
|
1.1
|
Mai 2013
|
0.3
|
0.2
|
Mehefin 2013
|
1.2
|
1.1
|
Gorffennaf 2013
|
1.0
|
1.3
|
Awst 2013
|
0.3
|
0.3
|
Medi 2013
|
0.2
|
0.3
|
Hydref 2013
|
-0.1
|
0.2
|
Tachwedd 2013
|
1.2
|
0.6
|
Rhagfyr 2013
|
1.0
|
0.6
|
Ionawr 2014
|
0.4
|
1.1
|
Chwefror 2014
|
0.3
|
0.0
|
Mawrth 2014
|
1.0
|
0.7
|
Ebrill 2014
|
1.4
|
1.6
|
Mai 2014
|
1.8
|
1.7
|
Mehefin 2014
|
0.9
|
0.8
|
Gorffennaf 2014
|
1.5
|
1.8
|
Awst 2014
|
1.3
|
1.4
|
Medi 2014
|
0.9
|
0.6
|
Hydref 2014
|
0.0
|
0.2
|
Tachwedd 2014
|
-0.1
|
-0.3
|
Rhagfyr 2014
|
0.6
|
0.4
|
Ionawr 2015
|
0.1
|
0.3
|
Chwefror 2015
|
-0.2
|
-0.1
|
Mawrth 2015
|
0.2
|
0.2
|
Ebrill 2015
|
1.4
|
1.2
|
Mai 2015
|
1.1
|
0.9
|
Mehefin 2015
|
1.5
|
1.5
|
Gorffennaf 2015
|
1.6
|
1.8
|
Awst 2015
|
1.2
|
1.3
|
Medi 2015
|
0.2
|
0.4
|
Hydref 2015
|
0.9
|
0.6
|
Tachwedd 2015
|
0.7
|
0.8
|
Rhagfyr 2015
|
1.1
|
0.9
|
Ionawr 2016
|
0.6
|
1.0
|
Chwefror 2016
|
0.8
|
0.5
|
Mawrth 2016
|
1.5
|
1.6
|
Ebrill 2016
|
-0.3
|
-1.2
|
Mai 2016
|
1.5
|
1.0
|
Mehefin 2016
|
1.0
|
1.5
|
Gorffennaf 2016
|
1.2
|
1.4
|
Awst 2016
|
0.4
|
0.2
|
Medi 2016
|
-1.1
|
-0.7
|
Hydref 2016
|
0.3
|
0.1
|
Tachwedd 2016
|
-0.2
|
0.1
|
Rhagfyr 2016
|
0.7
|
0.2
|
Ionawr 2017
|
1.0
|
1.4
|
Chwefror 2017
|
-0.4
|
-1.3
|
Mawrth 2017
|
-0.2
|
0.4
|
Ebrill 2017
|
1.0
|
1.1
|
Mai 2017
|
1.0
|
0.2
|
Mehefin 2017
|
0.7
|
1.1
|
Gorffennaf 2017
|
0.8
|
0.9
|
Awst 2017
|
0.6
|
0.7
|
Medi 2017
|
-0.3
|
-0.0
|
Hydref 2017
|
-0.2
|
-0.1
|
Tachwedd 2017
|
-0.3
|
-0.8
|
Rhagfyr 2017
|
0.1
|
0.2
|
Ionawr 2018
|
-0.1
|
0.2
|
Chwefror 2018
|
0.2
|
0.1
|
Mawrth 2018
|
-0.5
|
-0.4
|
Ebrill 2018
|
0.5
|
0.5
|
Mai 2018
|
-0.1
|
0.3
|
Mehefin 2018
|
1.0
|
0.8
|
Gorffennaf 2018
|
0.5
|
1.0
|
Awst 2018
|
0.5
|
0.1
|
Medi 2018
|
-0.5
|
-0.1
|
Hydref 2018
|
-0.6
|
-0.9
|
Tachwedd 2018
|
-0.5
|
-0.3
|
Rhagfyr 2018
|
-0.4
|
-0.9
|
Ionawr 2019
|
-0.1
|
0.7
|
Chwefror 2019
|
-0.4
|
-0.9
|
Mawrth 2019
|
-0.9
|
-0.9
|
Ebrill 2019
|
0.6
|
0.5
|
Mai 2019
|
-0.2
|
-0.2
|
Mehefin 2019
|
0.8
|
0.9
|
Gorffennaf 2019
|
0.7
|
0.4
|
Awst 2019
|
-0.5
|
0.5
|
Medi 2019
|
0.6
|
0.0
|
Hydref 2019
|
-0.6
|
-0.3
|
Tachwedd 2019
|
-0.2
|
0.1
|
Rhagfyr 2019
|
0.1
|
-0.6
|
Ionawr 2020
|
-0.0
|
0.3
|
Dyddiad
|
Prynwyr am y tro cyntaf
|
Cyn berchen-feddianwyr
|
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
|
82.0
|
82.3
|
Chwefror 2012
|
82.1
|
82.5
|
Mawrth 2012
|
83.2
|
82.5
|
Ebrill 2012
|
84.2
|
84.4
|
Mai 2012
|
84.4
|
84.4
|
Mehefin 2012
|
84.8
|
84.7
|
Gorffennaf 2012
|
85.4
|
85.8
|
Awst 2012
|
85.8
|
86.2
|
Medi 2012
|
86.1
|
86.4
|
Hydref 2012
|
84.8
|
85.0
|
Tachwedd 2012
|
84.8
|
84.8
|
Rhagfyr 2012
|
85.2
|
85.3
|
Ionawr 2013
|
84.7
|
85.2
|
Chwefror 2013
|
84.3
|
84.6
|
Mawrth 2013
|
84.8
|
85.2
|
Ebrill 2013
|
85.8
|
86.2
|
Mai 2013
|
86.1
|
86.3
|
Mehefin 2013
|
87.1
|
87.3
|
Gorffennaf 2013
|
88.0
|
88.4
|
Awst 2013
|
88.2
|
88.7
|
Medi 2013
|
88.4
|
89.0
|
Hydref 2013
|
88.4
|
89.1
|
Tachwedd 2013
|
89.4
|
89.6
|
Rhagfyr 2013
|
90.4
|
90.2
|
Ionawr 2014
|
90.8
|
91.1
|
Chwefror 2014
|
91.1
|
91.2
|
Mawrth 2014
|
92.0
|
91.8
|
Ebrill 2014
|
93.3
|
93.3
|
Mai 2014
|
95.0
|
94.8
|
Mehefin 2014
|
95.9
|
95.6
|
Gorffennaf 2014
|
97.3
|
97.3
|
Awst 2014
|
98.5
|
98.7
|
Medi 2014
|
99.4
|
99.3
|
Hydref 2014
|
99.5
|
99.5
|
Tachwedd 2014
|
99.3
|
99.3
|
Rhagfyr 2014
|
99.9
|
99.7
|
Ionawr 2015
|
100.0
|
100.0
|
Chwefror 2015
|
99.8
|
100.0
|
Mawrth 2015
|
100.0
|
100.2
|
Ebrill 2015
|
101.4
|
101.4
|
Mai 2015
|
102.5
|
102.3
|
Mehefin 2015
|
104.0
|
103.8
|
Gorffennaf 2015
|
105.6
|
105.7
|
Awst 2015
|
106.9
|
107.0
|
Medi 2015
|
107.2
|
107.5
|
Hydref 2015
|
108.1
|
108.2
|
Tachwedd 2015
|
108.8
|
109.0
|
Rhagfyr 2015
|
110.0
|
110.0
|
Ionawr 2016
|
110.7
|
111.0
|
Chwefror 2016
|
111.6
|
111.6
|
Mawrth 2016
|
113.3
|
113.4
|
Ebrill 2016
|
112.9
|
112.1
|
Mai 2016
|
114.6
|
113.2
|
Mehefin 2016
|
115.7
|
114.9
|
Gorffennaf 2016
|
117.1
|
116.4
|
Awst 2016
|
117.5
|
116.7
|
Medi 2016
|
116.3
|
115.9
|
Hydref 2016
|
116.6
|
116.1
|
Tachwedd 2016
|
116.4
|
116.2
|
Rhagfyr 2016
|
117.2
|
116.4
|
Ionawr 2017
|
118.3
|
118.0
|
Chwefror 2017
|
117.8
|
116.5
|
Mawrth 2017
|
117.6
|
116.9
|
Ebrill 2017
|
118.8
|
118.2
|
Mai 2017
|
120.0
|
118.4
|
Mehefin 2017
|
120.9
|
119.7
|
Gorffennaf 2017
|
121.9
|
120.7
|
Awst 2017
|
122.6
|
121.6
|
Medi 2017
|
122.2
|
121.5
|
Hydref 2017
|
121.9
|
121.4
|
Tachwedd 2017
|
121.5
|
120.5
|
Rhagfyr 2017
|
121.6
|
120.8
|
Ionawr 2018
|
121.5
|
121.0
|
Chwefror 2018
|
121.7
|
121.1
|
Mawrth 2018
|
121.1
|
120.5
|
Ebrill 2018
|
121.7
|
121.1
|
Mai 2018
|
121.6
|
121.5
|
Mehefin 2018
|
122.8
|
122.5
|
Gorffennaf 2018
|
123.4
|
123.7
|
Awst 2018
|
124.0
|
123.8
|
Medi 2018
|
123.3
|
123.7
|
Hydref 2018
|
122.6
|
122.5
|
Tachwedd 2018
|
121.9
|
122.2
|
Rhagfyr 2018
|
121.5
|
121.1
|
Ionawr 2019
|
121.4
|
122.0
|
Chwefror 2019
|
120.9
|
120.9
|
Mawrth 2019
|
119.8
|
119.7
|
Ebrill 2019
|
120.5
|
120.4
|
Mai 2019
|
120.2
|
120.1
|
Mehefin 2019
|
121.1
|
121.2
|
Gorffennaf 2019
|
122.0
|
121.6
|
Awst 2019
|
121.4
|
122.3
|
Medi 2019
|
122.2
|
122.3
|
Hydref 2019
|
121.5
|
121.9
|
Tachwedd 2019
|
121.2
|
122.1
|
Rhagfyr 2019
|
121.3
|
121.3
|
Ionawr 2020
|
121.3
|
121.7
|
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
|
Eiddo presennol
|
Ionawr 1995
|
70755.0
|
63640.0
|
Chwefror 1995
|
71444.0
|
63213.0
|
Mawrth 1995
|
71580.0
|
63647.0
|
Ebrill 1995
|
71184.0
|
64270.0
|
Mai 1995
|
71825.0
|
64087.0
|
Mehefin 1995
|
72765.0
|
65079.0
|
Gorffennaf 1995
|
71920.0
|
64859.0
|
Awst 1995
|
71538.0
|
64485.0
|
Medi 1995
|
70203.0
|
64085.0
|
Hydref 1995
|
72343.0
|
63568.0
|
Tachwedd 1995
|
71991.0
|
63938.0
|
Rhagfyr 1995
|
72205.0
|
63737.0
|
Ionawr 1996
|
73414.0
|
63364.0
|
Chwefror 1996
|
73288.0
|
63059.0
|
Mawrth 1996
|
73760.0
|
63052.0
|
Ebrill 1996
|
74122.0
|
64319.0
|
Mai 1996
|
73267.0
|
64810.0
|
Mehefin 1996
|
75245.0
|
65247.0
|
Gorffennaf 1996
|
75637.0
|
66398.0
|
Awst 1996
|
75640.0
|
66767.0
|
Medi 1996
|
75409.0
|
66640.0
|
Hydref 1996
|
75391.0
|
66571.0
|
Tachwedd 1996
|
76473.0
|
67382.0
|
Rhagfyr 1996
|
76881.0
|
68234.0
|
Ionawr 1997
|
76750.0
|
68511.0
|
Chwefror 1997
|
78476.0
|
69078.0
|
Mawrth 1997
|
79549.0
|
70125.0
|
Ebrill 1997
|
80481.0
|
71392.0
|
Mai 1997
|
81625.0
|
72828.0
|
Mehefin 1997
|
82391.0
|
73944.0
|
Gorffennaf 1997
|
83197.0
|
75350.0
|
Awst 1997
|
85203.0
|
77002.0
|
Medi 1997
|
86596.0
|
77528.0
|
Hydref 1997
|
86960.0
|
78595.0
|
Tachwedd 1997
|
88352.0
|
79436.0
|
Rhagfyr 1997
|
89520.0
|
79193.0
|
Ionawr 1998
|
90105.0
|
79288.0
|
Chwefror 1998
|
91330.0
|
79444.0
|
Mawrth 1998
|
91597.0
|
80475.0
|
Ebrill 1998
|
93285.0
|
82498.0
|
Mai 1998
|
93643.0
|
83358.0
|
Mehefin 1998
|
94905.0
|
84365.0
|
Gorffennaf 1998
|
95699.0
|
85360.0
|
Awst 1998
|
97042.0
|
86187.0
|
Medi 1998
|
95245.0
|
86198.0
|
Hydref 1998
|
97026.0
|
86173.0
|
Tachwedd 1998
|
97898.0
|
86210.0
|
Rhagfyr 1998
|
98448.0
|
85978.0
|
Ionawr 1999
|
99365.0
|
86509.0
|
Chwefror 1999
|
99477.0
|
86606.0
|
Mawrth 1999
|
99093.0
|
87261.0
|
Ebrill 1999
|
100246.0
|
89038.0
|
Mai 1999
|
102860.0
|
89966.0
|
Mehefin 1999
|
104241.0
|
91678.0
|
Gorffennaf 1999
|
105661.0
|
93344.0
|
Awst 1999
|
107186.0
|
95818.0
|
Medi 1999
|
110005.0
|
98403.0
|
Hydref 1999
|
111524.0
|
99215.0
|
Tachwedd 1999
|
112319.0
|
100662.0
|
Rhagfyr 1999
|
116713.0
|
102422.0
|
Ionawr 2000
|
116111.0
|
103561.0
|
Chwefror 2000
|
118300.0
|
103770.0
|
Mawrth 2000
|
121678.0
|
106792.0
|
Ebrill 2000
|
125152.0
|
111041.0
|
Mai 2000
|
126679.0
|
112164.0
|
Mehefin 2000
|
128848.0
|
114740.0
|
Gorffennaf 2000
|
129879.0
|
115694.0
|
Awst 2000
|
134129.0
|
117666.0
|
Medi 2000
|
131771.0
|
117238.0
|
Hydref 2000
|
133436.0
|
117319.0
|
Tachwedd 2000
|
134529.0
|
116750.0
|
Rhagfyr 2000
|
135632.0
|
117802.0
|
Ionawr 2001
|
137312.0
|
117322.0
|
Chwefror 2001
|
139196.0
|
117752.0
|
Mawrth 2001
|
138682.0
|
119479.0
|
Ebrill 2001
|
142755.0
|
122382.0
|
Mai 2001
|
141233.0
|
123931.0
|
Mehefin 2001
|
146889.0
|
126309.0
|
Gorffennaf 2001
|
147224.0
|
128498.0
|
Awst 2001
|
150876.0
|
130365.0
|
Medi 2001
|
153984.0
|
131155.0
|
Hydref 2001
|
155662.0
|
132475.0
|
Tachwedd 2001
|
155868.0
|
133800.0
|
Rhagfyr 2001
|
160217.0
|
134750.0
|
Ionawr 2002
|
160209.0
|
135487.0
|
Chwefror 2002
|
162392.0
|
134949.0
|
Mawrth 2002
|
162945.0
|
137724.0
|
Ebrill 2002
|
165804.0
|
140129.0
|
Mai 2002
|
168257.0
|
144408.0
|
Mehefin 2002
|
173694.0
|
147347.0
|
Gorffennaf 2002
|
174609.0
|
151661.0
|
Awst 2002
|
180547.0
|
156025.0
|
Medi 2002
|
181433.0
|
158293.0
|
Hydref 2002
|
185332.0
|
160632.0
|
Tachwedd 2002
|
187240.0
|
163383.0
|
Rhagfyr 2002
|
189804.0
|
165297.0
|
Ionawr 2003
|
189586.0
|
167558.0
|
Chwefror 2003
|
193107.0
|
167407.0
|
Mawrth 2003
|
195153.0
|
169124.0
|
Ebrill 2003
|
195736.0
|
170553.0
|
Mai 2003
|
196314.0
|
172205.0
|
Mehefin 2003
|
200807.0
|
173705.0
|
Gorffennaf 2003
|
200881.0
|
175550.0
|
Awst 2003
|
200689.0
|
176087.0
|
Medi 2003
|
197749.0
|
174862.0
|
Hydref 2003
|
201366.0
|
177605.0
|
Tachwedd 2003
|
202626.0
|
178643.0
|
Rhagfyr 2003
|
203303.0
|
179086.0
|
Ionawr 2004
|
207849.0
|
180290.0
|
Chwefror 2004
|
211358.0
|
181025.0
|
Mawrth 2004
|
210496.0
|
182681.0
|
Ebrill 2004
|
205627.0
|
185357.0
|
Mai 2004
|
214159.0
|
188184.0
|
Mehefin 2004
|
218319.0
|
190390.0
|
Gorffennaf 2004
|
212910.0
|
193569.0
|
Awst 2004
|
217943.0
|
196962.0
|
Medi 2004
|
219659.0
|
196250.0
|
Hydref 2004
|
220436.0
|
195987.0
|
Tachwedd 2004
|
224614.0
|
197734.0
|
Rhagfyr 2004
|
225124.0
|
195837.0
|
Ionawr 2005
|
225189.0
|
193466.0
|
Chwefror 2005
|
228075.0
|
194128.0
|
Mawrth 2005
|
228335.0
|
194115.0
|
Ebrill 2005
|
232070.0
|
195402.0
|
Mai 2005
|
230734.0
|
196476.0
|
Mehefin 2005
|
230646.0
|
196894.0
|
Gorffennaf 2005
|
230416.0
|
198151.0
|
Awst 2005
|
231800.0
|
198690.0
|
Medi 2005
|
232241.0
|
198900.0
|
Hydref 2005
|
232455.0
|
196824.0
|
Tachwedd 2005
|
234364.0
|
198020.0
|
Rhagfyr 2005
|
235748.0
|
198110.0
|
Ionawr 2006
|
232988.0
|
198903.0
|
Chwefror 2006
|
239474.0
|
199020.0
|
Mawrth 2006
|
236956.0
|
200161.0
|
Ebrill 2006
|
239215.0
|
202753.0
|
Mai 2006
|
243001.0
|
205879.0
|
Mehefin 2006
|
242411.0
|
207127.0
|
Gorffennaf 2006
|
241971.0
|
209528.0
|
Awst 2006
|
240818.0
|
211050.0
|
Medi 2006
|
245068.0
|
212673.0
|
Hydref 2006
|
244536.0
|
212481.0
|
Tachwedd 2006
|
244319.0
|
214548.0
|
Rhagfyr 2006
|
250460.0
|
217143.0
|
Ionawr 2007
|
251199.0
|
218341.0
|
Chwefror 2007
|
250360.0
|
217687.0
|
Mawrth 2007
|
249117.0
|
219607.0
|
Ebrill 2007
|
253059.0
|
223577.0
|
Mai 2007
|
263361.0
|
227663.0
|
Mehefin 2007
|
260401.0
|
229626.0
|
Gorffennaf 2007
|
266964.0
|
233557.0
|
Awst 2007
|
260273.0
|
234287.0
|
Medi 2007
|
266278.0
|
236302.0
|
Hydref 2007
|
268429.0
|
236725.0
|
Tachwedd 2007
|
266674.0
|
236668.0
|
Rhagfyr 2007
|
267776.0
|
234897.0
|
Ionawr 2008
|
266265.0
|
233075.0
|
Chwefror 2008
|
268419.0
|
228965.0
|
Mawrth 2008
|
266723.0
|
229895.0
|
Ebrill 2008
|
264642.0
|
228305.0
|
Mai 2008
|
266181.0
|
229488.0
|
Mehefin 2008
|
261393.0
|
226822.0
|
Gorffennaf 2008
|
256415.0
|
225807.0
|
Awst 2008
|
245085.0
|
218940.0
|
Medi 2008
|
242058.0
|
213292.0
|
Hydref 2008
|
235356.0
|
207177.0
|
Tachwedd 2008
|
229377.0
|
201217.0
|
Rhagfyr 2008
|
224445.0
|
198710.0
|
Ionawr 2009
|
221381.0
|
192595.0
|
Chwefror 2009
|
219693.0
|
189639.0
|
Mawrth 2009
|
221333.0
|
188882.0
|
Ebrill 2009
|
221223.0
|
191021.0
|
Mai 2009
|
222773.0
|
194858.0
|
Mehefin 2009
|
223436.0
|
197594.0
|
Gorffennaf 2009
|
225662.0
|
200932.0
|
Awst 2009
|
227420.0
|
205333.0
|
Medi 2009
|
233037.0
|
207771.0
|
Hydref 2009
|
231753.0
|
209070.0
|
Tachwedd 2009
|
233381.0
|
210721.0
|
Rhagfyr 2009
|
232611.0
|
210273.0
|
Ionawr 2010
|
228923.0
|
217481.0
|
Chwefror 2010
|
238202.0
|
216158.0
|
Mawrth 2010
|
238392.0
|
215421.0
|
Ebrill 2010
|
236615.0
|
217272.0
|
Mai 2010
|
237315.0
|
219546.0
|
Mehefin 2010
|
239568.0
|
221115.0
|
Gorffennaf 2010
|
237686.0
|
223949.0
|
Awst 2010
|
240453.0
|
223281.0
|
Medi 2010
|
244336.0
|
223496.0
|
Hydref 2010
|
242032.0
|
220132.0
|
Tachwedd 2010
|
238738.0
|
218777.0
|
Rhagfyr 2010
|
243291.0
|
217208.0
|
Ionawr 2011
|
241363.0
|
215226.0
|
Chwefror 2011
|
240975.0
|
215803.0
|
Mawrth 2011
|
242593.0
|
214166.0
|
Ebrill 2011
|
244494.0
|
216606.0
|
Mai 2011
|
247046.0
|
216848.0
|
Mehefin 2011
|
243363.0
|
217747.0
|
Gorffennaf 2011
|
248083.0
|
220457.0
|
Awst 2011
|
242479.0
|
219085.0
|
Medi 2011
|
243318.0
|
219986.0
|
Hydref 2011
|
242776.0
|
216873.0
|
Tachwedd 2011
|
245550.0
|
218199.0
|
Rhagfyr 2011
|
244535.0
|
217885.0
|
Ionawr 2012
|
241254.0
|
216288.0
|
Chwefror 2012
|
242652.0
|
217071.0
|
Mawrth 2012
|
245555.0
|
217498.0
|
Ebrill 2012
|
248451.0
|
221733.0
|
Mai 2012
|
248019.0
|
222077.0
|
Mehefin 2012
|
247425.0
|
223066.0
|
Gorffennaf 2012
|
244300.0
|
225910.0
|
Awst 2012
|
247156.0
|
226860.0
|
Medi 2012
|
250303.0
|
227250.0
|
Hydref 2012
|
250825.0
|
223388.0
|
Tachwedd 2012
|
251918.0
|
222909.0
|
Rhagfyr 2012
|
254558.0
|
224109.0
|
Ionawr 2013
|
246130.0
|
224071.0
|
Chwefror 2013
|
246407.0
|
222581.0
|
Mawrth 2013
|
254248.0
|
223490.0
|
Ebrill 2013
|
255368.0
|
226181.0
|
Mai 2013
|
254288.0
|
226792.0
|
Mehefin 2013
|
256703.0
|
229462.0
|
Gorffennaf 2013
|
256842.0
|
232454.0
|
Awst 2013
|
257857.0
|
233188.0
|
Medi 2013
|
262584.0
|
233486.0
|
Hydref 2013
|
262710.0
|
233658.0
|
Tachwedd 2013
|
264880.0
|
235555.0
|
Rhagfyr 2013
|
270462.0
|
236997.0
|
Ionawr 2014
|
269419.0
|
239235.0
|
Chwefror 2014
|
272936.0
|
239335.0
|
Mawrth 2014
|
274238.0
|
241457.0
|
Ebrill 2014
|
279306.0
|
245093.0
|
Mai 2014
|
286802.0
|
249138.0
|
Mehefin 2014
|
285467.0
|
251458.0
|
Gorffennaf 2014
|
287213.0
|
255931.0
|
Awst 2014
|
288721.0
|
259659.0
|
Medi 2014
|
290829.0
|
261566.0
|
Hydref 2014
|
293182.0
|
261749.0
|
Tachwedd 2014
|
290599.0
|
261365.0
|
Rhagfyr 2014
|
297882.0
|
262127.0
|
Ionawr 2015
|
300440.0
|
262606.0
|
Chwefror 2015
|
303275.0
|
262144.0
|
Mawrth 2015
|
303284.0
|
262695.0
|
Ebrill 2015
|
303393.0
|
266350.0
|
Mai 2015
|
305231.0
|
268990.0
|
Mehefin 2015
|
304569.0
|
273350.0
|
Gorffennaf 2015
|
313386.0
|
277749.0
|
Awst 2015
|
313966.0
|
281417.0
|
Medi 2015
|
314842.0
|
282429.0
|
Hydref 2015
|
321076.0
|
284257.0
|
Tachwedd 2015
|
320727.0
|
286456.0
|
Rhagfyr 2015
|
333108.0
|
288676.0
|
Ionawr 2016
|
330223.0
|
291365.0
|
Chwefror 2016
|
327239.0
|
293594.0
|
Mawrth 2016
|
326456.0
|
298509.0
|
Ebrill 2016
|
346073.0
|
294706.0
|
Mai 2016
|
356472.0
|
297799.0
|
Mehefin 2016
|
348631.0
|
302395.0
|
Gorffennaf 2016
|
351342.0
|
306409.0
|
Awst 2016
|
350367.0
|
307432.0
|
Medi 2016
|
348984.0
|
304812.0
|
Hydref 2016
|
355358.0
|
305036.0
|
Tachwedd 2016
|
354089.0
|
304977.0
|
Rhagfyr 2016
|
355354.0
|
306297.0
|
Ionawr 2017
|
367390.0
|
309525.0
|
Chwefror 2017
|
359941.0
|
306892.0
|
Mawrth 2017
|
361726.0
|
307239.0
|
Ebrill 2017
|
361744.0
|
310520.0
|
Mai 2017
|
363830.0
|
312230.0
|
Mehefin 2017
|
363130.0
|
315458.0
|
Gorffennaf 2017
|
367025.0
|
318119.0
|
Awst 2017
|
367164.0
|
320208.0
|
Medi 2017
|
370246.0
|
319538.0
|
Hydref 2017
|
371248.0
|
318934.0
|
Tachwedd 2017
|
363164.0
|
317393.0
|
Rhagfyr 2017
|
368194.0
|
317689.0
|
Ionawr 2018
|
376523.0
|
317539.0
|
Chwefror 2018
|
389305.0
|
316666.0
|
Mawrth 2018
|
373313.0
|
316650.0
|
Ebrill 2018
|
377418.0
|
317862.0
|
Mai 2018
|
369875.0
|
319185.0
|
Mehefin 2018
|
372714.0
|
322048.0
|
Gorffennaf 2018
|
378576.0
|
324125.0
|
Awst 2018
|
381354.0
|
324911.0
|
Medi 2018
|
377313.0
|
324219.0
|
Hydref 2018
|
381567.0
|
320900.0
|
Tachwedd 2018
|
366256.0
|
321184.0
|
Rhagfyr 2018
|
369952.0
|
318389.0
|
Ionawr 2019
|
373507.0
|
319246.0
|
Chwefror 2019
|
384629.0
|
315828.0
|
Mawrth 2019
|
371387.0
|
313826.0
|
Ebrill 2019
|
375122.0
|
315432.0
|
Mai 2019
|
370043.0
|
315194.0
|
Mehefin 2019
|
366304.0
|
318420.0
|
Gorffennaf 2019
|
383871.0
|
318600.0
|
Awst 2019
|
371516.0
|
319987.0
|
Medi 2019
|
378898.0
|
320415.0
|
Hydref 2019
|
376964.0
|
318973.0
|
Tachwedd 2019
|
361385.0
|
320428.0
|
Rhagfyr 2019
|
362691.0
|
319273.0
|
Ionawr 2020
|
384855.0
|
317576.0
|
Dyddiad
|
Adeilad newydd
|
Eiddo presennol
|
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
|
3.8
|
-0.4
|
Chwefror 1996
|
2.6
|
-0.2
|
Mawrth 1996
|
3.0
|
-0.9
|
Ebrill 1996
|
4.1
|
0.1
|
Mai 1996
|
2.0
|
1.1
|
Mehefin 1996
|
3.4
|
0.3
|
Gorffennaf 1996
|
5.2
|
2.4
|
Awst 1996
|
5.7
|
3.5
|
Medi 1996
|
7.4
|
4.0
|
Hydref 1996
|
4.2
|
4.7
|
Tachwedd 1996
|
6.2
|
5.4
|
Rhagfyr 1996
|
6.5
|
7.1
|
Ionawr 1997
|
4.5
|
8.1
|
Chwefror 1997
|
7.1
|
9.5
|
Mawrth 1997
|
7.8
|
11.2
|
Ebrill 1997
|
8.6
|
11.0
|
Mai 1997
|
11.4
|
12.4
|
Mehefin 1997
|
9.5
|
13.3
|
Gorffennaf 1997
|
10.0
|
13.5
|
Awst 1997
|
12.6
|
15.3
|
Medi 1997
|
14.8
|
16.3
|
Hydref 1997
|
15.4
|
18.1
|
Tachwedd 1997
|
15.5
|
17.9
|
Rhagfyr 1997
|
16.4
|
16.1
|
Ionawr 1998
|
17.4
|
15.7
|
Chwefror 1998
|
16.4
|
15.0
|
Mawrth 1998
|
15.2
|
14.8
|
Ebrill 1998
|
15.9
|
15.6
|
Mai 1998
|
14.7
|
14.5
|
Mehefin 1998
|
15.2
|
14.1
|
Gorffennaf 1998
|
15.0
|
13.3
|
Awst 1998
|
13.9
|
11.9
|
Medi 1998
|
10.0
|
11.2
|
Hydref 1998
|
11.6
|
9.6
|
Tachwedd 1998
|
10.8
|
8.5
|
Rhagfyr 1998
|
10.0
|
8.6
|
Ionawr 1999
|
10.3
|
9.1
|
Chwefror 1999
|
8.9
|
9.0
|
Mawrth 1999
|
8.2
|
8.4
|
Ebrill 1999
|
7.5
|
7.9
|
Mai 1999
|
9.8
|
7.9
|
Mehefin 1999
|
9.8
|
8.7
|
Gorffennaf 1999
|
10.4
|
9.4
|
Awst 1999
|
10.4
|
11.2
|
Medi 1999
|
15.5
|
14.2
|
Hydref 1999
|
14.9
|
15.1
|
Tachwedd 1999
|
14.7
|
16.8
|
Rhagfyr 1999
|
18.6
|
19.1
|
Ionawr 2000
|
16.8
|
19.7
|
Chwefror 2000
|
18.9
|
19.8
|
Mawrth 2000
|
22.8
|
22.4
|
Ebrill 2000
|
24.8
|
24.7
|
Mai 2000
|
23.2
|
24.7
|
Mehefin 2000
|
23.6
|
25.2
|
Gorffennaf 2000
|
22.9
|
23.9
|
Awst 2000
|
25.1
|
22.8
|
Medi 2000
|
19.8
|
19.1
|
Hydref 2000
|
19.6
|
18.2
|
Tachwedd 2000
|
19.8
|
16.0
|
Rhagfyr 2000
|
16.2
|
15.0
|
Ionawr 2001
|
18.3
|
13.3
|
Chwefror 2001
|
17.7
|
13.5
|
Mawrth 2001
|
14.0
|
11.9
|
Ebrill 2001
|
14.1
|
10.2
|
Mai 2001
|
11.5
|
10.5
|
Mehefin 2001
|
14.0
|
10.1
|
Gorffennaf 2001
|
13.4
|
11.1
|
Awst 2001
|
12.5
|
10.8
|
Medi 2001
|
16.9
|
11.9
|
Hydref 2001
|
16.7
|
12.9
|
Tachwedd 2001
|
15.9
|
14.6
|
Rhagfyr 2001
|
18.1
|
14.4
|
Ionawr 2002
|
16.7
|
15.5
|
Chwefror 2002
|
16.7
|
14.6
|
Mawrth 2002
|
17.5
|
15.3
|
Ebrill 2002
|
16.2
|
14.5
|
Mai 2002
|
19.1
|
16.5
|
Mehefin 2002
|
18.2
|
16.7
|
Gorffennaf 2002
|
18.6
|
18.0
|
Awst 2002
|
19.7
|
19.7
|
Medi 2002
|
17.8
|
20.7
|
Hydref 2002
|
19.1
|
21.2
|
Tachwedd 2002
|
20.1
|
22.1
|
Rhagfyr 2002
|
18.5
|
22.7
|
Ionawr 2003
|
18.3
|
23.7
|
Chwefror 2003
|
18.9
|
24.0
|
Mawrth 2003
|
19.8
|
22.8
|
Ebrill 2003
|
18.0
|
21.7
|
Mai 2003
|
16.7
|
19.2
|
Mehefin 2003
|
15.6
|
17.9
|
Gorffennaf 2003
|
15.0
|
15.8
|
Awst 2003
|
11.2
|
12.9
|
Medi 2003
|
9.0
|
10.5
|
Hydref 2003
|
8.6
|
10.6
|
Tachwedd 2003
|
8.2
|
9.3
|
Rhagfyr 2003
|
7.1
|
8.3
|
Ionawr 2004
|
9.6
|
7.6
|
Chwefror 2004
|
9.4
|
8.1
|
Mawrth 2004
|
7.9
|
8.0
|
Ebrill 2004
|
5.0
|
8.7
|
Mai 2004
|
9.1
|
9.3
|
Mehefin 2004
|
8.7
|
9.6
|
Gorffennaf 2004
|
6.0
|
10.3
|
Awst 2004
|
8.6
|
11.9
|
Medi 2004
|
11.1
|
12.2
|
Hydref 2004
|
9.5
|
10.4
|
Tachwedd 2004
|
10.8
|
10.7
|
Rhagfyr 2004
|
10.7
|
9.4
|
Ionawr 2005
|
8.3
|
7.3
|
Chwefror 2005
|
7.9
|
7.2
|
Mawrth 2005
|
8.5
|
6.3
|
Ebrill 2005
|
12.9
|
5.4
|
Mai 2005
|
7.7
|
4.4
|
Mehefin 2005
|
5.6
|
3.4
|
Gorffennaf 2005
|
8.2
|
2.4
|
Awst 2005
|
6.4
|
0.9
|
Medi 2005
|
5.7
|
1.4
|
Hydref 2005
|
5.4
|
0.4
|
Tachwedd 2005
|
4.3
|
0.1
|
Rhagfyr 2005
|
4.7
|
1.2
|
Ionawr 2006
|
3.5
|
2.8
|
Chwefror 2006
|
5.0
|
2.5
|
Mawrth 2006
|
3.8
|
3.1
|
Ebrill 2006
|
3.1
|
3.8
|
Mai 2006
|
5.3
|
4.8
|
Mehefin 2006
|
5.1
|
5.2
|
Gorffennaf 2006
|
5.0
|
5.7
|
Awst 2006
|
3.9
|
6.2
|
Medi 2006
|
5.5
|
6.9
|
Hydref 2006
|
5.2
|
8.0
|
Tachwedd 2006
|
4.2
|
8.4
|
Rhagfyr 2006
|
6.2
|
9.6
|
Ionawr 2007
|
7.8
|
9.8
|
Chwefror 2007
|
4.6
|
9.4
|
Mawrth 2007
|
5.1
|
9.7
|
Ebrill 2007
|
5.8
|
10.3
|
Mai 2007
|
8.4
|
10.6
|
Mehefin 2007
|
7.4
|
10.9
|
Gorffennaf 2007
|
10.3
|
11.5
|
Awst 2007
|
8.1
|
11.0
|
Medi 2007
|
8.6
|
11.1
|
Hydref 2007
|
9.8
|
11.4
|
Tachwedd 2007
|
9.2
|
10.3
|
Rhagfyr 2007
|
6.9
|
8.2
|
Ionawr 2008
|
6.0
|
6.8
|
Chwefror 2008
|
7.2
|
5.2
|
Mawrth 2008
|
7.1
|
4.7
|
Ebrill 2008
|
4.6
|
2.1
|
Mai 2008
|
1.1
|
0.8
|
Mehefin 2008
|
0.4
|
-1.2
|
Gorffennaf 2008
|
-4.0
|
-3.3
|
Awst 2008
|
-5.8
|
-6.6
|
Medi 2008
|
-9.1
|
-9.7
|
Hydref 2008
|
-12.3
|
-12.5
|
Tachwedd 2008
|
-14.0
|
-15.0
|
Rhagfyr 2008
|
-16.2
|
-15.4
|
Ionawr 2009
|
-16.9
|
-17.4
|
Chwefror 2009
|
-18.2
|
-17.2
|
Mawrth 2009
|
-17.0
|
-17.8
|
Ebrill 2009
|
-16.4
|
-16.3
|
Mai 2009
|
-16.3
|
-15.1
|
Mehefin 2009
|
-14.5
|
-12.9
|
Gorffennaf 2009
|
-12.0
|
-11.0
|
Awst 2009
|
-7.2
|
-6.2
|
Medi 2009
|
-3.7
|
-2.6
|
Hydref 2009
|
-1.5
|
0.9
|
Tachwedd 2009
|
1.8
|
4.7
|
Rhagfyr 2009
|
3.6
|
5.8
|
Ionawr 2010
|
3.4
|
12.9
|
Chwefror 2010
|
8.4
|
14.0
|
Mawrth 2010
|
7.7
|
14.0
|
Ebrill 2010
|
7.0
|
13.7
|
Mai 2010
|
6.5
|
12.7
|
Mehefin 2010
|
7.2
|
11.9
|
Gorffennaf 2010
|
5.3
|
11.5
|
Awst 2010
|
5.7
|
8.7
|
Medi 2010
|
4.8
|
7.6
|
Hydref 2010
|
4.4
|
5.3
|
Tachwedd 2010
|
2.3
|
3.8
|
Rhagfyr 2010
|
4.6
|
3.3
|
Ionawr 2011
|
5.4
|
-1.0
|
Chwefror 2011
|
1.2
|
-0.2
|
Mawrth 2011
|
1.8
|
-0.6
|
Ebrill 2011
|
3.3
|
-0.3
|
Mai 2011
|
4.1
|
-1.2
|
Mehefin 2011
|
1.6
|
-1.5
|
Gorffennaf 2011
|
4.4
|
-1.6
|
Awst 2011
|
0.8
|
-1.9
|
Medi 2011
|
-0.4
|
-1.6
|
Hydref 2011
|
0.3
|
-1.5
|
Tachwedd 2011
|
2.8
|
-0.3
|
Rhagfyr 2011
|
0.5
|
0.3
|
Ionawr 2012
|
-0.1
|
0.5
|
Chwefror 2012
|
0.7
|
0.6
|
Mawrth 2012
|
1.2
|
1.6
|
Ebrill 2012
|
1.6
|
2.4
|
Mai 2012
|
0.4
|
2.4
|
Mehefin 2012
|
1.7
|
2.4
|
Gorffennaf 2012
|
-1.5
|
2.5
|
Awst 2012
|
1.9
|
3.6
|
Medi 2012
|
2.9
|
3.3
|
Hydref 2012
|
3.3
|
3.0
|
Tachwedd 2012
|
2.6
|
2.2
|
Rhagfyr 2012
|
4.1
|
2.9
|
Ionawr 2013
|
2.0
|
3.6
|
Chwefror 2013
|
1.6
|
2.5
|
Mawrth 2013
|
3.5
|
2.8
|
Ebrill 2013
|
2.8
|
2.0
|
Mai 2013
|
2.5
|
2.1
|
Mehefin 2013
|
3.8
|
2.9
|
Gorffennaf 2013
|
5.1
|
2.9
|
Awst 2013
|
4.3
|
2.8
|
Medi 2013
|
4.9
|
2.7
|
Hydref 2013
|
4.7
|
4.6
|
Tachwedd 2013
|
5.2
|
5.7
|
Rhagfyr 2013
|
6.2
|
5.8
|
Ionawr 2014
|
9.5
|
6.8
|
Chwefror 2014
|
10.8
|
7.5
|
Mawrth 2014
|
7.9
|
8.0
|
Ebrill 2014
|
9.4
|
8.4
|
Mai 2014
|
12.8
|
9.8
|
Mehefin 2014
|
11.2
|
9.6
|
Gorffennaf 2014
|
11.8
|
10.1
|
Awst 2014
|
12.0
|
11.4
|
Medi 2014
|
10.8
|
12.0
|
Hydref 2014
|
11.6
|
12.0
|
Tachwedd 2014
|
9.7
|
11.0
|
Rhagfyr 2014
|
10.1
|
10.6
|
Ionawr 2015
|
11.5
|
9.8
|
Chwefror 2015
|
11.1
|
9.5
|
Mawrth 2015
|
10.6
|
8.8
|
Ebrill 2015
|
8.6
|
8.7
|
Mai 2015
|
6.4
|
8.0
|
Mehefin 2015
|
6.7
|
8.7
|
Gorffennaf 2015
|
9.1
|
8.5
|
Awst 2015
|
8.7
|
8.4
|
Medi 2015
|
8.3
|
8.0
|
Hydref 2015
|
9.5
|
8.6
|
Tachwedd 2015
|
10.4
|
9.6
|
Rhagfyr 2015
|
11.8
|
10.1
|
Ionawr 2016
|
9.9
|
11.0
|
Chwefror 2016
|
7.9
|
12.0
|
Mawrth 2016
|
7.6
|
13.6
|
Ebrill 2016
|
14.1
|
10.6
|
Mai 2016
|
16.8
|
10.7
|
Mehefin 2016
|
14.5
|
10.6
|
Gorffennaf 2016
|
12.1
|
10.3
|
Awst 2016
|
11.6
|
9.2
|
Medi 2016
|
10.8
|
7.9
|
Hydref 2016
|
10.7
|
7.3
|
Tachwedd 2016
|
10.4
|
6.5
|
Rhagfyr 2016
|
6.7
|
6.1
|
Ionawr 2017
|
11.3
|
6.2
|
Chwefror 2017
|
10.0
|
4.5
|
Mawrth 2017
|
10.8
|
2.9
|
Ebrill 2017
|
4.5
|
5.4
|
Mai 2017
|
2.1
|
4.8
|
Mehefin 2017
|
4.2
|
4.3
|
Gorffennaf 2017
|
4.5
|
3.8
|
Awst 2017
|
4.8
|
4.2
|
Medi 2017
|
6.1
|
4.8
|
Hydref 2017
|
4.5
|
4.6
|
Tachwedd 2017
|
2.6
|
4.1
|
Rhagfyr 2017
|
3.6
|
3.7
|
Ionawr 2018
|
2.5
|
2.6
|
Chwefror 2018
|
8.2
|
3.2
|
Mawrth 2018
|
3.2
|
3.1
|
Ebrill 2018
|
4.3
|
2.4
|
Mai 2018
|
1.7
|
2.2
|
Mehefin 2018
|
2.6
|
2.1
|
Gorffennaf 2018
|
3.2
|
1.9
|
Awst 2018
|
3.9
|
1.5
|
Medi 2018
|
1.9
|
1.5
|
Hydref 2018
|
2.8
|
0.6
|
Tachwedd 2018
|
0.8
|
1.2
|
Rhagfyr 2018
|
0.5
|
0.2
|
Ionawr 2019
|
-0.8
|
0.5
|
Chwefror 2019
|
-1.2
|
-0.3
|
Mawrth 2019
|
-0.5
|
-0.9
|
Ebrill 2019
|
-0.6
|
-0.8
|
Mai 2019
|
0.1
|
-1.2
|
Mehefin 2019
|
-1.7
|
-1.1
|
Gorffennaf 2019
|
1.4
|
-1.7
|
Awst 2019
|
-2.6
|
-1.5
|
Medi 2019
|
0.4
|
-1.2
|
Hydref 2019
|
-1.2
|
-0.6
|
Tachwedd 2019
|
-1.3
|
-0.2
|
Rhagfyr 2019
|
-2.0
|
0.3
|
Ionawr 2020
|
3.0
|
-0.5
|
Dyddiad
|
Adeilad newydd
|
Eiddo presennol
|
Ionawr 1995
|
|
|
Chwefror 1995
|
1.0
|
-0.7
|
Mawrth 1995
|
0.2
|
0.7
|
Ebrill 1995
|
-0.6
|
1.0
|
Mai 1995
|
0.9
|
-0.3
|
Mehefin 1995
|
1.3
|
1.6
|
Gorffennaf 1995
|
-1.2
|
-0.3
|
Awst 1995
|
-0.5
|
-0.6
|
Medi 1995
|
-1.9
|
-0.6
|
Hydref 1995
|
3.0
|
-0.8
|
Tachwedd 1995
|
-0.5
|
0.6
|
Rhagfyr 1995
|
0.3
|
-0.3
|
Ionawr 1996
|
1.7
|
-0.6
|
Chwefror 1996
|
-0.2
|
-0.5
|
Mawrth 1996
|
0.6
|
-0.0
|
Ebrill 1996
|
0.5
|
2.0
|
Mai 1996
|
-1.2
|
0.8
|
Mehefin 1996
|
2.7
|
0.7
|
Gorffennaf 1996
|
0.5
|
1.8
|
Awst 1996
|
0.0
|
0.6
|
Medi 1996
|
-0.3
|
-0.2
|
Hydref 1996
|
-0.0
|
-0.1
|
Tachwedd 1996
|
1.4
|
1.2
|
Rhagfyr 1996
|
0.5
|
1.3
|
Ionawr 1997
|
-0.2
|
0.4
|
Chwefror 1997
|
2.2
|
0.8
|
Mawrth 1997
|
1.4
|
1.5
|
Ebrill 1997
|
1.2
|
1.8
|
Mai 1997
|
1.4
|
2.0
|
Mehefin 1997
|
0.9
|
1.5
|
Gorffennaf 1997
|
1.0
|
1.9
|
Awst 1997
|
2.4
|
2.2
|
Medi 1997
|
1.6
|
0.7
|
Hydref 1997
|
0.4
|
1.4
|
Tachwedd 1997
|
1.6
|
1.1
|
Rhagfyr 1997
|
1.3
|
-0.3
|
Ionawr 1998
|
0.6
|
0.1
|
Chwefror 1998
|
1.4
|
0.2
|
Mawrth 1998
|
0.3
|
1.3
|
Ebrill 1998
|
1.8
|
2.5
|
Mai 1998
|
0.4
|
1.0
|
Mehefin 1998
|
1.4
|
1.2
|
Gorffennaf 1998
|
0.8
|
1.2
|
Awst 1998
|
1.4
|
1.0
|
Medi 1998
|
-1.8
|
0.0
|
Hydref 1998
|
1.9
|
-0.0
|
Tachwedd 1998
|
0.9
|
0.0
|
Rhagfyr 1998
|
0.6
|
-0.3
|
Ionawr 1999
|
0.9
|
0.6
|
Chwefror 1999
|
0.1
|
0.1
|
Mawrth 1999
|
-0.4
|
0.8
|
Ebrill 1999
|
1.2
|
2.0
|
Mai 1999
|
2.6
|
1.0
|
Mehefin 1999
|
1.3
|
1.9
|
Gorffennaf 1999
|
1.4
|
1.8
|
Awst 1999
|
1.4
|
2.6
|
Medi 1999
|
2.6
|
2.7
|
Hydref 1999
|
1.4
|
0.8
|
Tachwedd 1999
|
0.7
|
1.5
|
Rhagfyr 1999
|
3.9
|
1.8
|
Ionawr 2000
|
-0.5
|
1.1
|
Chwefror 2000
|
1.9
|
0.2
|
Mawrth 2000
|
2.9
|
2.9
|
Ebrill 2000
|
2.9
|
4.0
|
Mai 2000
|
1.2
|
1.0
|
Mehefin 2000
|
1.7
|
2.3
|
Gorffennaf 2000
|
0.8
|
0.8
|
Awst 2000
|
3.3
|
1.7
|
Medi 2000
|
-1.8
|
-0.4
|
Hydref 2000
|
1.3
|
0.1
|
Tachwedd 2000
|
0.8
|
-0.5
|
Rhagfyr 2000
|
0.8
|
0.9
|
Ionawr 2001
|
1.2
|
-0.4
|
Chwefror 2001
|
1.4
|
0.4
|
Mawrth 2001
|
-0.4
|
1.5
|
Ebrill 2001
|
2.9
|
2.4
|
Mai 2001
|
-1.1
|
1.3
|
Mehefin 2001
|
4.0
|
1.9
|
Gorffennaf 2001
|
0.2
|
1.7
|
Awst 2001
|
2.5
|
1.4
|
Medi 2001
|
2.1
|
0.6
|
Hydref 2001
|
1.1
|
1.0
|
Tachwedd 2001
|
0.1
|
1.0
|
Rhagfyr 2001
|
2.8
|
0.7
|
Ionawr 2002
|
-0.0
|
0.6
|
Chwefror 2002
|
1.4
|
-0.4
|
Mawrth 2002
|
0.3
|
2.1
|
Ebrill 2002
|
1.8
|
1.8
|
Mai 2002
|
1.5
|
3.0
|
Mehefin 2002
|
3.2
|
2.0
|
Gorffennaf 2002
|
0.5
|
2.9
|
Awst 2002
|
3.4
|
2.9
|
Medi 2002
|
0.5
|
1.4
|
Hydref 2002
|
2.2
|
1.5
|
Tachwedd 2002
|
1.0
|
1.7
|
Rhagfyr 2002
|
1.4
|
1.2
|
Ionawr 2003
|
-0.1
|
1.4
|
Chwefror 2003
|
1.9
|
-0.1
|
Mawrth 2003
|
1.1
|
1.0
|
Ebrill 2003
|
0.3
|
0.8
|
Mai 2003
|
0.3
|
1.0
|
Mehefin 2003
|
2.3
|
0.9
|
Gorffennaf 2003
|
0.0
|
1.1
|
Awst 2003
|
-0.1
|
0.3
|
Medi 2003
|
-1.5
|
-0.7
|
Hydref 2003
|
1.8
|
1.6
|
Tachwedd 2003
|
0.6
|
0.6
|
Rhagfyr 2003
|
0.3
|
0.2
|
Ionawr 2004
|
2.2
|
0.7
|
Chwefror 2004
|
1.7
|
0.4
|
Mawrth 2004
|
-0.4
|
0.9
|
Ebrill 2004
|
-2.3
|
1.5
|
Mai 2004
|
4.2
|
1.5
|
Mehefin 2004
|
1.9
|
1.2
|
Gorffennaf 2004
|
-2.5
|
1.7
|
Awst 2004
|
2.4
|
1.8
|
Medi 2004
|
0.8
|
-0.4
|
Hydref 2004
|
0.4
|
-0.1
|
Tachwedd 2004
|
1.9
|
0.9
|
Rhagfyr 2004
|
0.2
|
-1.0
|
Ionawr 2005
|
0.0
|
-1.2
|
Chwefror 2005
|
1.3
|
0.3
|
Mawrth 2005
|
0.1
|
-0.0
|
Ebrill 2005
|
1.6
|
0.7
|
Mai 2005
|
-0.6
|
0.6
|
Mehefin 2005
|
-0.0
|
0.2
|
Gorffennaf 2005
|
-0.1
|
0.6
|
Awst 2005
|
0.6
|
0.3
|
Medi 2005
|
0.2
|
0.1
|
Hydref 2005
|
0.1
|
-1.0
|
Tachwedd 2005
|
0.8
|
0.6
|
Rhagfyr 2005
|
0.6
|
0.1
|
Ionawr 2006
|
-1.2
|
0.4
|
Chwefror 2006
|
2.8
|
0.1
|
Mawrth 2006
|
-1.0
|
0.6
|
Ebrill 2006
|
1.0
|
1.3
|
Mai 2006
|
1.6
|
1.5
|
Mehefin 2006
|
-0.2
|
0.6
|
Gorffennaf 2006
|
-0.2
|
1.2
|
Awst 2006
|
-0.5
|
0.7
|
Medi 2006
|
1.8
|
0.8
|
Hydref 2006
|
-0.2
|
-0.1
|
Tachwedd 2006
|
-0.1
|
1.0
|
Rhagfyr 2006
|
2.5
|
1.2
|
Ionawr 2007
|
0.3
|
0.6
|
Chwefror 2007
|
-0.3
|
-0.3
|
Mawrth 2007
|
-0.5
|
0.9
|
Ebrill 2007
|
1.6
|
1.8
|
Mai 2007
|
4.1
|
1.8
|
Mehefin 2007
|
-1.1
|
0.9
|
Gorffennaf 2007
|
2.5
|
1.7
|
Awst 2007
|
-2.5
|
0.3
|
Medi 2007
|
2.3
|
0.9
|
Hydref 2007
|
0.8
|
0.2
|
Tachwedd 2007
|
-0.6
|
-0.0
|
Rhagfyr 2007
|
0.4
|
-0.8
|
Ionawr 2008
|
-0.6
|
-0.8
|
Chwefror 2008
|
0.8
|
-1.8
|
Mawrth 2008
|
-0.6
|
0.4
|
Ebrill 2008
|
-0.8
|
-0.7
|
Mai 2008
|
0.6
|
0.5
|
Mehefin 2008
|
-1.8
|
-1.2
|
Gorffennaf 2008
|
-1.9
|
-0.4
|
Awst 2008
|
-4.4
|
-3.0
|
Medi 2008
|
-1.2
|
-2.6
|
Hydref 2008
|
-2.8
|
-2.9
|
Tachwedd 2008
|
-2.5
|
-2.9
|
Rhagfyr 2008
|
-2.2
|
-1.2
|
Ionawr 2009
|
-1.4
|
-3.1
|
Chwefror 2009
|
-0.8
|
-1.5
|
Mawrth 2009
|
0.8
|
-0.4
|
Ebrill 2009
|
-0.1
|
1.1
|
Mai 2009
|
0.7
|
2.0
|
Mehefin 2009
|
0.3
|
1.4
|
Gorffennaf 2009
|
1.0
|
1.7
|
Awst 2009
|
0.8
|
2.2
|
Medi 2009
|
2.5
|
1.2
|
Hydref 2009
|
-0.6
|
0.6
|
Tachwedd 2009
|
0.7
|
0.8
|
Rhagfyr 2009
|
-0.3
|
-0.2
|
Ionawr 2010
|
-1.6
|
3.4
|
Chwefror 2010
|
4.0
|
-0.6
|
Mawrth 2010
|
0.1
|
-0.3
|
Ebrill 2010
|
-0.8
|
0.9
|
Mai 2010
|
0.3
|
1.0
|
Mehefin 2010
|
1.0
|
0.7
|
Gorffennaf 2010
|
-0.8
|
1.3
|
Awst 2010
|
1.2
|
-0.3
|
Medi 2010
|
1.6
|
0.1
|
Hydref 2010
|
-0.9
|
-1.5
|
Tachwedd 2010
|
-1.4
|
-0.6
|
Rhagfyr 2010
|
1.9
|
-0.7
|
Ionawr 2011
|
-0.8
|
-0.9
|
Chwefror 2011
|
-0.2
|
0.3
|
Mawrth 2011
|
0.7
|
-0.8
|
Ebrill 2011
|
0.8
|
1.1
|
Mai 2011
|
1.0
|
0.1
|
Mehefin 2011
|
-1.5
|
0.4
|
Gorffennaf 2011
|
1.9
|
1.2
|
Awst 2011
|
-2.3
|
-0.6
|
Medi 2011
|
0.4
|
0.4
|
Hydref 2011
|
-0.2
|
-1.4
|
Tachwedd 2011
|
1.1
|
0.6
|
Rhagfyr 2011
|
-0.4
|
-0.1
|
Ionawr 2012
|
-1.3
|
-0.7
|
Chwefror 2012
|
0.6
|
0.4
|
Mawrth 2012
|
1.2
|
0.2
|
Ebrill 2012
|
1.2
|
2.0
|
Mai 2012
|
-0.2
|
0.2
|
Mehefin 2012
|
-0.2
|
0.4
|
Gorffennaf 2012
|
-1.3
|
1.3
|
Awst 2012
|
1.2
|
0.4
|
Medi 2012
|
1.3
|
0.2
|
Hydref 2012
|
0.2
|
-1.7
|
Tachwedd 2012
|
0.4
|
-0.2
|
Rhagfyr 2012
|
1.0
|
0.5
|
Ionawr 2013
|
-3.3
|
-0.0
|
Chwefror 2013
|
0.1
|
-0.7
|
Mawrth 2013
|
3.2
|
0.4
|
Ebrill 2013
|
0.4
|
1.2
|
Mai 2013
|
-0.4
|
0.3
|
Mehefin 2013
|
1.0
|
1.2
|
Gorffennaf 2013
|
0.1
|
1.3
|
Awst 2013
|
0.4
|
0.3
|
Medi 2013
|
1.8
|
0.1
|
Hydref 2013
|
0.1
|
0.1
|
Tachwedd 2013
|
0.8
|
0.8
|
Rhagfyr 2013
|
2.1
|
0.6
|
Ionawr 2014
|
-0.4
|
0.9
|
Chwefror 2014
|
1.3
|
0.0
|
Mawrth 2014
|
0.5
|
0.9
|
Ebrill 2014
|
1.8
|
1.5
|
Mai 2014
|
2.7
|
1.6
|
Mehefin 2014
|
-0.5
|
0.9
|
Gorffennaf 2014
|
0.6
|
1.8
|
Awst 2014
|
0.5
|
1.5
|
Medi 2014
|
0.7
|
0.7
|
Hydref 2014
|
0.8
|
0.1
|
Tachwedd 2014
|
-0.9
|
-0.2
|
Rhagfyr 2014
|
2.5
|
0.3
|
Ionawr 2015
|
0.9
|
0.2
|
Chwefror 2015
|
0.9
|
-0.2
|
Mawrth 2015
|
0.0
|
0.2
|
Ebrill 2015
|
0.0
|
1.4
|
Mai 2015
|
0.6
|
1.0
|
Mehefin 2015
|
-0.2
|
1.6
|
Gorffennaf 2015
|
2.9
|
1.6
|
Awst 2015
|
0.2
|
1.3
|
Medi 2015
|
0.3
|
0.4
|
Hydref 2015
|
2.0
|
0.6
|
Tachwedd 2015
|
-0.1
|
0.8
|
Rhagfyr 2015
|
3.9
|
0.8
|
Ionawr 2016
|
-0.9
|
0.9
|
Chwefror 2016
|
-0.9
|
0.8
|
Mawrth 2016
|
-0.2
|
1.7
|
Ebrill 2016
|
6.0
|
-1.3
|
Mai 2016
|
3.0
|
1.0
|
Mehefin 2016
|
-2.2
|
1.5
|
Gorffennaf 2016
|
0.8
|
1.3
|
Awst 2016
|
-0.3
|
0.3
|
Medi 2016
|
-0.4
|
-0.8
|
Hydref 2016
|
1.8
|
0.1
|
Tachwedd 2016
|
-0.4
|
-0.0
|
Rhagfyr 2016
|
0.4
|
0.4
|
Ionawr 2017
|
3.4
|
1.0
|
Chwefror 2017
|
-2.0
|
-0.8
|
Mawrth 2017
|
0.5
|
0.1
|
Ebrill 2017
|
0.0
|
1.1
|
Mai 2017
|
0.6
|
0.6
|
Mehefin 2017
|
-0.2
|
1.0
|
Gorffennaf 2017
|
1.1
|
0.8
|
Awst 2017
|
0.0
|
0.7
|
Medi 2017
|
0.8
|
-0.2
|
Hydref 2017
|
0.3
|
-0.2
|
Tachwedd 2017
|
-2.2
|
-0.5
|
Rhagfyr 2017
|
1.4
|
0.1
|
Ionawr 2018
|
2.3
|
-0.1
|
Chwefror 2018
|
3.4
|
-0.3
|
Mawrth 2018
|
-4.1
|
-0.0
|
Ebrill 2018
|
1.1
|
0.4
|
Mai 2018
|
-2.0
|
0.4
|
Mehefin 2018
|
0.8
|
0.9
|
Gorffennaf 2018
|
1.6
|
0.6
|
Awst 2018
|
0.7
|
0.2
|
Medi 2018
|
-1.1
|
-0.2
|
Hydref 2018
|
1.1
|
-1.0
|
Tachwedd 2018
|
-4.0
|
0.1
|
Rhagfyr 2018
|
1.0
|
-0.9
|
Ionawr 2019
|
1.0
|
0.3
|
Chwefror 2019
|
3.0
|
-1.1
|
Mawrth 2019
|
-3.4
|
-0.6
|
Ebrill 2019
|
1.0
|
0.5
|
Mai 2019
|
-1.4
|
-0.1
|
Mehefin 2019
|
-1.0
|
1.0
|
Gorffennaf 2019
|
4.8
|
0.1
|
Awst 2019
|
-3.2
|
0.4
|
Medi 2019
|
2.0
|
0.1
|
Hydref 2019
|
-0.5
|
-0.4
|
Tachwedd 2019
|
-4.1
|
0.5
|
Rhagfyr 2019
|
0.4
|
-0.4
|
Ionawr 2020
|
6.1
|
-0.5
|
Dyddiad
|
Adeilad newydd
|
Eiddo presennol
|
Ionawr 1995
|
23.6
|
24.2
|
Chwefror 1995
|
23.8
|
24.1
|
Mawrth 1995
|
23.8
|
24.2
|
Ebrill 1995
|
23.7
|
24.5
|
Mai 1995
|
23.9
|
24.4
|
Mehefin 1995
|
24.2
|
24.8
|
Gorffennaf 1995
|
23.9
|
24.7
|
Awst 1995
|
23.8
|
24.6
|
Medi 1995
|
23.4
|
24.4
|
Hydref 1995
|
24.1
|
24.2
|
Tachwedd 1995
|
24.0
|
24.4
|
Rhagfyr 1995
|
24.0
|
24.3
|
Ionawr 1996
|
24.4
|
24.1
|
Chwefror 1996
|
24.4
|
24.0
|
Mawrth 1996
|
24.6
|
24.0
|
Ebrill 1996
|
24.7
|
24.5
|
Mai 1996
|
24.4
|
24.7
|
Mehefin 1996
|
25.0
|
24.8
|
Gorffennaf 1996
|
25.2
|
25.3
|
Awst 1996
|
25.2
|
25.4
|
Medi 1996
|
25.1
|
25.4
|
Hydref 1996
|
25.1
|
25.4
|
Tachwedd 1996
|
25.4
|
25.7
|
Rhagfyr 1996
|
25.6
|
26.0
|
Ionawr 1997
|
25.6
|
26.1
|
Chwefror 1997
|
26.1
|
26.3
|
Mawrth 1997
|
26.5
|
26.7
|
Ebrill 1997
|
26.8
|
27.2
|
Mai 1997
|
27.2
|
27.7
|
Mehefin 1997
|
27.4
|
28.2
|
Gorffennaf 1997
|
27.7
|
28.7
|
Awst 1997
|
28.4
|
29.3
|
Medi 1997
|
28.8
|
29.5
|
Hydref 1997
|
28.9
|
29.9
|
Tachwedd 1997
|
29.4
|
30.2
|
Rhagfyr 1997
|
29.8
|
30.2
|
Ionawr 1998
|
30.0
|
30.2
|
Chwefror 1998
|
30.4
|
30.2
|
Mawrth 1998
|
30.5
|
30.6
|
Ebrill 1998
|
31.0
|
31.4
|
Mai 1998
|
31.2
|
31.7
|
Mehefin 1998
|
31.6
|
32.1
|
Gorffennaf 1998
|
31.8
|
32.5
|
Awst 1998
|
32.3
|
32.8
|
Medi 1998
|
31.7
|
32.8
|
Hydref 1998
|
32.3
|
32.8
|
Tachwedd 1998
|
32.6
|
32.8
|
Rhagfyr 1998
|
32.8
|
32.7
|
Ionawr 1999
|
33.1
|
32.9
|
Chwefror 1999
|
33.1
|
33.0
|
Mawrth 1999
|
33.0
|
33.2
|
Ebrill 1999
|
33.4
|
33.9
|
Mai 1999
|
34.2
|
34.3
|
Mehefin 1999
|
34.7
|
34.9
|
Gorffennaf 1999
|
35.2
|
35.6
|
Awst 1999
|
35.7
|
36.5
|
Medi 1999
|
36.6
|
37.5
|
Hydref 1999
|
37.1
|
37.8
|
Tachwedd 1999
|
37.4
|
38.3
|
Rhagfyr 1999
|
38.8
|
39.0
|
Ionawr 2000
|
38.6
|
39.4
|
Chwefror 2000
|
39.4
|
39.5
|
Mawrth 2000
|
40.5
|
40.7
|
Ebrill 2000
|
41.7
|
42.3
|
Mai 2000
|
42.2
|
42.7
|
Mehefin 2000
|
42.9
|
43.7
|
Gorffennaf 2000
|
43.2
|
44.1
|
Awst 2000
|
44.6
|
44.8
|
Medi 2000
|
43.9
|
44.6
|
Hydref 2000
|
44.4
|
44.7
|
Tachwedd 2000
|
44.8
|
44.5
|
Rhagfyr 2000
|
45.1
|
44.9
|
Ionawr 2001
|
45.7
|
44.7
|
Chwefror 2001
|
46.3
|
44.8
|
Mawrth 2001
|
46.2
|
45.5
|
Ebrill 2001
|
47.5
|
46.6
|
Mai 2001
|
47.0
|
47.2
|
Mehefin 2001
|
48.9
|
48.1
|
Gorffennaf 2001
|
49.0
|
48.9
|
Awst 2001
|
50.2
|
49.6
|
Medi 2001
|
51.2
|
49.9
|
Hydref 2001
|
51.8
|
50.4
|
Tachwedd 2001
|
51.9
|
51.0
|
Rhagfyr 2001
|
53.3
|
51.3
|
Ionawr 2002
|
53.3
|
51.6
|
Chwefror 2002
|
54.0
|
51.4
|
Mawrth 2002
|
54.2
|
52.4
|
Ebrill 2002
|
55.2
|
53.4
|
Mai 2002
|
56.0
|
55.0
|
Mehefin 2002
|
57.8
|
56.1
|
Gorffennaf 2002
|
58.1
|
57.8
|
Awst 2002
|
60.1
|
59.4
|
Medi 2002
|
60.4
|
60.3
|
Hydref 2002
|
61.7
|
61.2
|
Tachwedd 2002
|
62.3
|
62.2
|
Rhagfyr 2002
|
63.2
|
62.9
|
Ionawr 2003
|
63.1
|
63.8
|
Chwefror 2003
|
64.3
|
63.8
|
Mawrth 2003
|
65.0
|
64.4
|
Ebrill 2003
|
65.2
|
65.0
|
Mai 2003
|
65.3
|
65.6
|
Mehefin 2003
|
66.8
|
66.2
|
Gorffennaf 2003
|
66.9
|
66.8
|
Awst 2003
|
66.8
|
67.0
|
Medi 2003
|
65.8
|
66.6
|
Hydref 2003
|
67.0
|
67.6
|
Tachwedd 2003
|
67.4
|
68.0
|
Rhagfyr 2003
|
67.7
|
68.2
|
Ionawr 2004
|
69.2
|
68.6
|
Chwefror 2004
|
70.4
|
68.9
|
Mawrth 2004
|
70.1
|
69.6
|
Ebrill 2004
|
68.4
|
70.6
|
Mai 2004
|
71.3
|
71.7
|
Mehefin 2004
|
72.7
|
72.5
|
Gorffennaf 2004
|
70.9
|
73.7
|
Awst 2004
|
72.5
|
75.0
|
Medi 2004
|
73.1
|
74.7
|
Hydref 2004
|
73.4
|
74.6
|
Tachwedd 2004
|
74.8
|
75.3
|
Rhagfyr 2004
|
74.9
|
74.6
|
Ionawr 2005
|
75.0
|
73.7
|
Chwefror 2005
|
75.9
|
73.9
|
Mawrth 2005
|
76.0
|
73.9
|
Ebrill 2005
|
77.2
|
74.4
|
Mai 2005
|
76.8
|
74.8
|
Mehefin 2005
|
76.8
|
75.0
|
Gorffennaf 2005
|
76.7
|
75.5
|
Awst 2005
|
77.2
|
75.7
|
Medi 2005
|
77.3
|
75.7
|
Hydref 2005
|
77.4
|
75.0
|
Tachwedd 2005
|
78.0
|
75.4
|
Rhagfyr 2005
|
78.5
|
75.4
|
Ionawr 2006
|
77.6
|
75.7
|
Chwefror 2006
|
79.7
|
75.8
|
Mawrth 2006
|
78.9
|
76.2
|
Ebrill 2006
|
79.6
|
77.2
|
Mai 2006
|
80.9
|
78.4
|
Mehefin 2006
|
80.7
|
78.9
|
Gorffennaf 2006
|
80.5
|
79.8
|
Awst 2006
|
80.2
|
80.4
|
Medi 2006
|
81.6
|
81.0
|
Hydref 2006
|
81.4
|
80.9
|
Tachwedd 2006
|
81.3
|
81.7
|
Rhagfyr 2006
|
83.4
|
82.7
|
Ionawr 2007
|
83.6
|
83.1
|
Chwefror 2007
|
83.3
|
82.9
|
Mawrth 2007
|
82.9
|
83.6
|
Ebrill 2007
|
84.2
|
85.1
|
Mai 2007
|
87.7
|
86.7
|
Mehefin 2007
|
86.7
|
87.4
|
Gorffennaf 2007
|
88.9
|
88.9
|
Awst 2007
|
86.6
|
89.2
|
Medi 2007
|
88.6
|
90.0
|
Hydref 2007
|
89.4
|
90.1
|
Tachwedd 2007
|
88.8
|
90.1
|
Rhagfyr 2007
|
89.1
|
89.4
|
Ionawr 2008
|
88.6
|
88.8
|
Chwefror 2008
|
89.3
|
87.2
|
Mawrth 2008
|
88.8
|
87.5
|
Ebrill 2008
|
88.1
|
86.9
|
Mai 2008
|
88.6
|
87.4
|
Mehefin 2008
|
87.0
|
86.4
|
Gorffennaf 2008
|
85.4
|
86.0
|
Awst 2008
|
81.6
|
83.4
|
Medi 2008
|
80.6
|
81.2
|
Hydref 2008
|
78.3
|
78.9
|
Tachwedd 2008
|
76.4
|
76.6
|
Rhagfyr 2008
|
74.7
|
75.7
|
Ionawr 2009
|
73.7
|
73.3
|
Chwefror 2009
|
73.1
|
72.2
|
Mawrth 2009
|
73.7
|
71.9
|
Ebrill 2009
|
73.6
|
72.7
|
Mai 2009
|
74.2
|
74.2
|
Mehefin 2009
|
74.4
|
75.2
|
Gorffennaf 2009
|
75.1
|
76.5
|
Awst 2009
|
75.7
|
78.2
|
Medi 2009
|
77.6
|
79.1
|
Hydref 2009
|
77.1
|
79.6
|
Tachwedd 2009
|
77.7
|
80.2
|
Rhagfyr 2009
|
77.4
|
80.1
|
Ionawr 2010
|
76.2
|
82.8
|
Chwefror 2010
|
79.3
|
82.3
|
Mawrth 2010
|
79.4
|
82.0
|
Ebrill 2010
|
78.8
|
82.7
|
Mai 2010
|
79.0
|
83.6
|
Mehefin 2010
|
79.7
|
84.2
|
Gorffennaf 2010
|
79.1
|
85.3
|
Awst 2010
|
80.0
|
85.0
|
Medi 2010
|
81.3
|
85.1
|
Hydref 2010
|
80.6
|
83.8
|
Tachwedd 2010
|
79.5
|
83.3
|
Rhagfyr 2010
|
81.0
|
82.7
|
Ionawr 2011
|
80.3
|
82.0
|
Chwefror 2011
|
80.2
|
82.2
|
Mawrth 2011
|
80.8
|
81.6
|
Ebrill 2011
|
81.4
|
82.5
|
Mai 2011
|
82.2
|
82.6
|
Mehefin 2011
|
81.0
|
82.9
|
Gorffennaf 2011
|
82.6
|
84.0
|
Awst 2011
|
80.7
|
83.4
|
Medi 2011
|
81.0
|
83.8
|
Hydref 2011
|
80.8
|
82.6
|
Tachwedd 2011
|
81.7
|
83.1
|
Rhagfyr 2011
|
81.4
|
83.0
|
Ionawr 2012
|
80.3
|
82.4
|
Chwefror 2012
|
80.8
|
82.7
|
Mawrth 2012
|
81.7
|
82.8
|
Ebrill 2012
|
82.7
|
84.4
|
Mai 2012
|
82.6
|
84.6
|
Mehefin 2012
|
82.4
|
84.9
|
Gorffennaf 2012
|
81.3
|
86.0
|
Awst 2012
|
82.3
|
86.4
|
Medi 2012
|
83.3
|
86.5
|
Hydref 2012
|
83.5
|
85.1
|
Tachwedd 2012
|
83.8
|
84.9
|
Rhagfyr 2012
|
84.7
|
85.3
|
Ionawr 2013
|
81.9
|
85.3
|
Chwefror 2013
|
82.0
|
84.8
|
Mawrth 2013
|
84.6
|
85.1
|
Ebrill 2013
|
85.0
|
86.1
|
Mai 2013
|
84.6
|
86.4
|
Mehefin 2013
|
85.4
|
87.4
|
Gorffennaf 2013
|
85.5
|
88.5
|
Awst 2013
|
85.8
|
88.8
|
Medi 2013
|
87.4
|
88.9
|
Hydref 2013
|
87.4
|
89.0
|
Tachwedd 2013
|
88.2
|
89.7
|
Rhagfyr 2013
|
90.0
|
90.2
|
Ionawr 2014
|
89.7
|
91.1
|
Chwefror 2014
|
90.8
|
91.1
|
Mawrth 2014
|
91.3
|
92.0
|
Ebrill 2014
|
93.0
|
93.3
|
Mai 2014
|
95.5
|
94.9
|
Mehefin 2014
|
95.0
|
95.8
|
Gorffennaf 2014
|
95.6
|
97.5
|
Awst 2014
|
96.1
|
98.9
|
Medi 2014
|
96.8
|
99.6
|
Hydref 2014
|
97.6
|
99.7
|
Tachwedd 2014
|
96.7
|
99.5
|
Rhagfyr 2014
|
99.2
|
99.8
|
Ionawr 2015
|
100.0
|
100.0
|
Chwefror 2015
|
100.9
|
99.8
|
Mawrth 2015
|
101.0
|
100.0
|
Ebrill 2015
|
101.0
|
101.4
|
Mai 2015
|
101.6
|
102.4
|
Mehefin 2015
|
101.4
|
104.1
|
Gorffennaf 2015
|
104.3
|
105.8
|
Awst 2015
|
104.5
|
107.2
|
Medi 2015
|
104.8
|
107.6
|
Hydref 2015
|
106.9
|
108.2
|
Tachwedd 2015
|
106.8
|
109.1
|
Rhagfyr 2015
|
110.9
|
109.9
|
Ionawr 2016
|
109.9
|
111.0
|
Chwefror 2016
|
108.9
|
111.8
|
Mawrth 2016
|
108.7
|
113.7
|
Ebrill 2016
|
115.2
|
112.2
|
Mai 2016
|
118.6
|
113.4
|
Mehefin 2016
|
116.0
|
115.2
|
Gorffennaf 2016
|
116.9
|
116.7
|
Awst 2016
|
116.6
|
117.1
|
Medi 2016
|
116.2
|
116.1
|
Hydref 2016
|
118.3
|
116.2
|
Tachwedd 2016
|
117.9
|
116.1
|
Rhagfyr 2016
|
118.3
|
116.6
|
Ionawr 2017
|
122.3
|
117.9
|
Chwefror 2017
|
119.8
|
116.9
|
Mawrth 2017
|
120.4
|
117.0
|
Ebrill 2017
|
120.4
|
118.2
|
Mai 2017
|
121.1
|
118.9
|
Mehefin 2017
|
120.9
|
120.1
|
Gorffennaf 2017
|
122.2
|
121.1
|
Awst 2017
|
122.2
|
121.9
|
Medi 2017
|
123.2
|
121.7
|
Hydref 2017
|
123.6
|
121.4
|
Tachwedd 2017
|
120.9
|
120.9
|
Rhagfyr 2017
|
122.6
|
121.0
|
Ionawr 2018
|
125.3
|
120.9
|
Chwefror 2018
|
129.6
|
120.6
|
Mawrth 2018
|
124.3
|
120.6
|
Ebrill 2018
|
125.6
|
121.0
|
Mai 2018
|
123.1
|
121.5
|
Mehefin 2018
|
124.1
|
122.6
|
Gorffennaf 2018
|
126.0
|
123.4
|
Awst 2018
|
126.9
|
123.7
|
Medi 2018
|
125.6
|
123.5
|
Hydref 2018
|
127.0
|
122.2
|
Tachwedd 2018
|
121.9
|
122.3
|
Rhagfyr 2018
|
123.1
|
121.2
|
Ionawr 2019
|
124.3
|
121.6
|
Chwefror 2019
|
128.0
|
120.3
|
Mawrth 2019
|
123.6
|
119.5
|
Ebrill 2019
|
124.9
|
120.1
|
Mai 2019
|
123.2
|
120.0
|
Mehefin 2019
|
121.9
|
121.2
|
Gorffennaf 2019
|
127.8
|
121.3
|
Awst 2019
|
123.7
|
121.8
|
Medi 2019
|
126.1
|
122.0
|
Hydref 2019
|
125.5
|
121.5
|
Tachwedd 2019
|
120.3
|
122.0
|
Rhagfyr 2019
|
120.7
|
121.6
|
Ionawr 2020
|
128.1
|
120.9
|