Cysylltau cyflym:
yn ôl math o eiddo
yn ôl statws y prynwr
yn ôl statws cyllido
yn ôl statws yr eiddo
Ystadegau Prisiau Tai
Math o eiddo
Tracio’r mynegai, pris cyfartalog a’r newid misol a blynyddol ar gyfer pob math o eiddo neu ganolbwyntio ar un penodol.
Dyddiad
|
Pob math o eiddo
|
Tai pâr
|
Tai teras
|
Fflatiau a fflatiau deulawr
|
Mehefin 2005
|
251033.0
|
225071.0
|
201980.0
|
142253.0
|
Gorffennaf 2005
|
253778.0
|
227283.0
|
203832.0
|
143248.0
|
Awst 2005
|
253263.0
|
226499.0
|
203261.0
|
142544.0
|
Medi 2005
|
254327.0
|
227143.0
|
204048.0
|
142627.0
|
Hydref 2005
|
248929.0
|
221976.0
|
200043.0
|
140078.0
|
Tachwedd 2005
|
252058.0
|
225201.0
|
203067.0
|
142116.0
|
Rhagfyr 2005
|
254201.0
|
227134.0
|
205200.0
|
144327.0
|
Ionawr 2006
|
258593.0
|
231060.0
|
208940.0
|
146335.0
|
Chwefror 2006
|
258669.0
|
231018.0
|
209165.0
|
146556.0
|
Mawrth 2006
|
256952.0
|
229718.0
|
207621.0
|
144710.0
|
Ebrill 2006
|
263255.0
|
235670.0
|
212789.0
|
148287.0
|
Mai 2006
|
264770.0
|
237010.0
|
213663.0
|
148830.0
|
Mehefin 2006
|
268864.0
|
240740.0
|
217019.0
|
151374.0
|
Gorffennaf 2006
|
275086.0
|
246099.0
|
222366.0
|
154261.0
|
Awst 2006
|
278613.0
|
249202.0
|
225679.0
|
155543.0
|
Medi 2006
|
279518.0
|
249951.0
|
226201.0
|
155025.0
|
Hydref 2006
|
274963.0
|
245721.0
|
222145.0
|
153054.0
|
Tachwedd 2006
|
276609.0
|
247426.0
|
223360.0
|
154186.0
|
Rhagfyr 2006
|
277664.0
|
248236.0
|
224688.0
|
155611.0
|
Ionawr 2007
|
273001.0
|
244202.0
|
220943.0
|
152520.0
|
Chwefror 2007
|
276366.0
|
247097.0
|
223678.0
|
154954.0
|
Mawrth 2007
|
281136.0
|
251580.0
|
227971.0
|
157321.0
|
Ebrill 2007
|
283902.0
|
253891.0
|
230861.0
|
159058.0
|
Mai 2007
|
282740.0
|
252773.0
|
230343.0
|
158522.0
|
Mehefin 2007
|
281685.0
|
251542.0
|
229158.0
|
158131.0
|
Gorffennaf 2007
|
287884.0
|
257063.0
|
233553.0
|
160976.0
|
Awst 2007
|
288077.0
|
257126.0
|
233520.0
|
159748.0
|
Medi 2007
|
293107.0
|
261520.0
|
236836.0
|
161862.0
|
Hydref 2007
|
291144.0
|
259459.0
|
235462.0
|
161524.0
|
Tachwedd 2007
|
296386.0
|
263799.0
|
238932.0
|
165105.0
|
Rhagfyr 2007
|
292790.0
|
260341.0
|
236151.0
|
163696.0
|
Ionawr 2008
|
295917.0
|
262951.0
|
238257.0
|
165287.0
|
Chwefror 2008
|
290308.0
|
258326.0
|
233888.0
|
161834.0
|
Mawrth 2008
|
287049.0
|
256194.0
|
231918.0
|
159378.0
|
Ebrill 2008
|
282735.0
|
252983.0
|
229066.0
|
156619.0
|
Mai 2008
|
288100.0
|
257825.0
|
233756.0
|
159219.0
|
Mehefin 2008
|
284253.0
|
253971.0
|
230110.0
|
156752.0
|
Gorffennaf 2008
|
289810.0
|
258916.0
|
234556.0
|
159492.0
|
Awst 2008
|
280394.0
|
250087.0
|
226473.0
|
153936.0
|
Medi 2008
|
281846.0
|
250900.0
|
227143.0
|
154657.0
|
Hydref 2008
|
263202.0
|
234102.0
|
211479.0
|
144670.0
|
Tachwedd 2008
|
256573.0
|
228407.0
|
206170.0
|
141393.0
|
Rhagfyr 2008
|
254589.0
|
226890.0
|
205104.0
|
140246.0
|
Ionawr 2009
|
257870.0
|
229056.0
|
206906.0
|
141726.0
|
Chwefror 2009
|
264880.0
|
235279.0
|
212125.0
|
145676.0
|
Mawrth 2009
|
254306.0
|
225756.0
|
203274.0
|
140552.0
|
Ebrill 2009
|
248380.0
|
221535.0
|
199856.0
|
137586.0
|
Mai 2009
|
243572.0
|
217434.0
|
196687.0
|
134316.0
|
Mehefin 2009
|
246669.0
|
220326.0
|
199496.0
|
135090.0
|
Gorffennaf 2009
|
257575.0
|
229682.0
|
207860.0
|
139557.0
|
Awst 2009
|
265051.0
|
236321.0
|
214170.0
|
142862.0
|
Medi 2009
|
270421.0
|
241118.0
|
218440.0
|
145162.0
|
Hydref 2009
|
274295.0
|
244645.0
|
221606.0
|
146785.0
|
Tachwedd 2009
|
271154.0
|
241358.0
|
218908.0
|
144696.0
|
Rhagfyr 2009
|
275006.0
|
245291.0
|
222787.0
|
146434.0
|
Ionawr 2010
|
274003.0
|
244360.0
|
221877.0
|
145282.0
|
Chwefror 2010
|
279701.0
|
250405.0
|
225968.0
|
147397.0
|
Mawrth 2010
|
277396.0
|
248054.0
|
223356.0
|
145862.0
|
Ebrill 2010
|
278473.0
|
249425.0
|
224215.0
|
146552.0
|
Mai 2010
|
275316.0
|
246134.0
|
221828.0
|
145361.0
|
Mehefin 2010
|
283131.0
|
253270.0
|
228218.0
|
149028.0
|
Gorffennaf 2010
|
288711.0
|
257745.0
|
232020.0
|
150892.0
|
Awst 2010
|
288413.0
|
257886.0
|
231268.0
|
149562.0
|
Medi 2010
|
284656.0
|
254221.0
|
227776.0
|
146666.0
|
Hydref 2010
|
282014.0
|
252164.0
|
225866.0
|
145486.0
|
Tachwedd 2010
|
282749.0
|
252463.0
|
226151.0
|
146197.0
|
Rhagfyr 2010
|
290056.0
|
259522.0
|
231761.0
|
149979.0
|
Ionawr 2011
|
282847.0
|
252697.0
|
225590.0
|
145770.0
|
Chwefror 2011
|
287426.0
|
256546.0
|
229199.0
|
147958.0
|
Mawrth 2011
|
276273.0
|
245652.0
|
220064.0
|
141791.0
|
Ebrill 2011
|
278398.0
|
247863.0
|
222175.0
|
143111.0
|
Mai 2011
|
275941.0
|
245966.0
|
220535.0
|
142349.0
|
Mehefin 2011
|
276022.0
|
246916.0
|
220809.0
|
142931.0
|
Gorffennaf 2011
|
273522.0
|
244569.0
|
219138.0
|
141928.0
|
Awst 2011
|
270594.0
|
242048.0
|
216502.0
|
138893.0
|
Medi 2011
|
279527.0
|
249737.0
|
223238.0
|
142645.0
|
Hydref 2011
|
282870.0
|
252931.0
|
224885.0
|
143339.0
|
Tachwedd 2011
|
283319.0
|
253115.0
|
225220.0
|
144502.0
|
Rhagfyr 2011
|
273231.0
|
244386.0
|
217125.0
|
139726.0
|
Ionawr 2012
|
272605.0
|
243927.0
|
216838.0
|
139157.0
|
Chwefror 2012
|
277960.0
|
248808.0
|
221133.0
|
140794.0
|
Mawrth 2012
|
283783.0
|
254125.0
|
226365.0
|
143663.0
|
Ebrill 2012
|
288423.0
|
257900.0
|
230254.0
|
146970.0
|
Mai 2012
|
284689.0
|
254671.0
|
227907.0
|
145877.0
|
Mehefin 2012
|
289718.0
|
258654.0
|
232291.0
|
148077.0
|
Gorffennaf 2012
|
287604.0
|
256563.0
|
230460.0
|
146421.0
|
Awst 2012
|
288189.0
|
256929.0
|
230726.0
|
145697.0
|
Medi 2012
|
289676.0
|
258117.0
|
231576.0
|
146346.0
|
Hydref 2012
|
292869.0
|
261319.0
|
234431.0
|
147729.0
|
Tachwedd 2012
|
291189.0
|
259806.0
|
233441.0
|
147006.0
|
Rhagfyr 2012
|
284764.0
|
254122.0
|
228199.0
|
143058.0
|
Ionawr 2013
|
284578.0
|
254313.0
|
227847.0
|
142610.0
|
Chwefror 2013
|
284401.0
|
254341.0
|
227399.0
|
142398.0
|
Mawrth 2013
|
277316.0
|
248236.0
|
221669.0
|
139032.0
|
Ebrill 2013
|
277802.0
|
248443.0
|
222465.0
|
139043.0
|
Mai 2013
|
281682.0
|
252006.0
|
225707.0
|
141296.0
|
Mehefin 2013
|
295562.0
|
264636.0
|
236999.0
|
148149.0
|
Gorffennaf 2013
|
292378.0
|
261618.0
|
234586.0
|
146780.0
|
Awst 2013
|
299584.0
|
268140.0
|
240201.0
|
149613.0
|
Medi 2013
|
301193.0
|
269112.0
|
241422.0
|
150262.0
|
Hydref 2013
|
306847.0
|
274249.0
|
245371.0
|
152556.0
|
Tachwedd 2013
|
304836.0
|
272775.0
|
244045.0
|
151849.0
|
Rhagfyr 2013
|
302625.0
|
271699.0
|
242387.0
|
151356.0
|
Ionawr 2014
|
299980.0
|
269526.0
|
240392.0
|
150550.0
|
Chwefror 2014
|
296821.0
|
266635.0
|
237286.0
|
148785.0
|
Mawrth 2014
|
299530.0
|
269233.0
|
239225.0
|
149558.0
|
Ebrill 2014
|
305281.0
|
274605.0
|
244135.0
|
152022.0
|
Mai 2014
|
308069.0
|
277217.0
|
247006.0
|
153671.0
|
Mehefin 2014
|
308883.0
|
278051.0
|
247776.0
|
154186.0
|
Gorffennaf 2014
|
312607.0
|
281528.0
|
250824.0
|
155712.0
|
Awst 2014
|
316682.0
|
285101.0
|
253870.0
|
157132.0
|
Medi 2014
|
325715.0
|
292837.0
|
261218.0
|
161423.0
|
Hydref 2014
|
325385.0
|
292561.0
|
260533.0
|
161659.0
|
Tachwedd 2014
|
323031.0
|
290581.0
|
258555.0
|
161010.0
|
Rhagfyr 2014
|
318158.0
|
286310.0
|
254227.0
|
158709.0
|
Ionawr 2015
|
316588.0
|
284991.0
|
252556.0
|
157698.0
|
Chwefror 2015
|
320974.0
|
288329.0
|
255736.0
|
159310.0
|
Mawrth 2015
|
317534.0
|
285126.0
|
252518.0
|
157297.0
|
Ebrill 2015
|
315229.0
|
282861.0
|
250923.0
|
156125.0
|
Mai 2015
|
313436.0
|
281933.0
|
249584.0
|
155476.0
|
Mehefin 2015
|
315612.0
|
284484.0
|
252044.0
|
156182.0
|
Gorffennaf 2015
|
317460.0
|
286521.0
|
253649.0
|
156848.0
|
Awst 2015
|
323661.0
|
292175.0
|
258736.0
|
159425.0
|
Medi 2015
|
330350.0
|
297539.0
|
263651.0
|
162753.0
|
Hydref 2015
|
338063.0
|
304620.0
|
269841.0
|
166635.0
|
Tachwedd 2015
|
347884.0
|
313614.0
|
277442.0
|
171471.0
|
Rhagfyr 2015
|
351089.0
|
316743.0
|
279454.0
|
172665.0
|
Ionawr 2016
|
357668.0
|
323050.0
|
284064.0
|
175498.0
|
Chwefror 2016
|
347950.0
|
314285.0
|
276015.0
|
170509.0
|
Mawrth 2016
|
347851.0
|
314127.0
|
276120.0
|
171037.0
|
Ebrill 2016
|
338583.0
|
305342.0
|
268898.0
|
166918.0
|
Mai 2016
|
332154.0
|
299363.0
|
263956.0
|
164971.0
|
Mehefin 2016
|
330578.0
|
297830.0
|
262746.0
|
164261.0
|
Gorffennaf 2016
|
331061.0
|
298208.0
|
263268.0
|
164286.0
|
Awst 2016
|
344315.0
|
310056.0
|
273835.0
|
170492.0
|
Medi 2016
|
351003.0
|
316599.0
|
278829.0
|
173676.0
|
Hydref 2016
|
352469.0
|
317919.0
|
279177.0
|
175224.0
|
Tachwedd 2016
|
349552.0
|
315222.0
|
275795.0
|
173802.0
|
Rhagfyr 2016
|
346150.0
|
311602.0
|
272625.0
|
172609.0
|
Ionawr 2017
|
351933.0
|
316743.0
|
277089.0
|
175259.0
|
Chwefror 2017
|
357006.0
|
321035.0
|
280977.0
|
178816.0
|
Mawrth 2017
|
354576.0
|
319015.0
|
278507.0
|
177608.0
|
Ebrill 2017
|
350153.0
|
314749.0
|
274578.0
|
175698.0
|
Mai 2017
|
342800.0
|
308889.0
|
268684.0
|
172125.0
|
Mehefin 2017
|
352882.0
|
317936.0
|
277021.0
|
177590.0
|
Gorffennaf 2017
|
357427.0
|
322565.0
|
280828.0
|
180170.0
|
Awst 2017
|
359926.0
|
324444.0
|
283248.0
|
180508.0
|
Medi 2017
|
365239.0
|
329340.0
|
287377.0
|
182417.0
|
Hydref 2017
|
369948.0
|
333651.0
|
291023.0
|
183807.0
|
Tachwedd 2017
|
379062.0
|
342320.0
|
297892.0
|
188533.0
|
Rhagfyr 2017
|
370784.0
|
335167.0
|
291385.0
|
184588.0
|
Ionawr 2018
|
372714.0
|
337046.0
|
292831.0
|
185818.0
|
Chwefror 2018
|
367303.0
|
331548.0
|
287777.0
|
182146.0
|
Mawrth 2018
|
365448.0
|
330140.0
|
286491.0
|
180609.0
|
Ebrill 2018
|
355520.0
|
321408.0
|
279252.0
|
174828.0
|
Mai 2018
|
351242.0
|
318452.0
|
276733.0
|
172140.0
|
Mehefin 2018
|
352125.0
|
319816.0
|
277533.0
|
172679.0
|
Gorffennaf 2018
|
370305.0
|
335921.0
|
291580.0
|
181270.0
|
Awst 2018
|
373305.0
|
338572.0
|
294423.0
|
182964.0
|
Medi 2018
|
378191.0
|
342865.0
|
298294.0
|
184532.0
|
Hydref 2018
|
373311.0
|
338790.0
|
294099.0
|
182508.0
|
Tachwedd 2018
|
377313.0
|
342641.0
|
296986.0
|
184116.0
|
Rhagfyr 2018
|
381122.0
|
346225.0
|
299525.0
|
186626.0
|
Ionawr 2019
|
373380.0
|
339164.0
|
293063.0
|
182457.0
|
Chwefror 2019
|
374062.0
|
339293.0
|
292714.0
|
182764.0
|
Mawrth 2019
|
375529.0
|
340378.0
|
293561.0
|
182927.0
|
Ebrill 2019
|
378562.0
|
343372.0
|
296901.0
|
184142.0
|
Mai 2019
|
379937.0
|
345072.0
|
298941.0
|
184627.0
|
Mehefin 2019
|
375846.0
|
341241.0
|
296392.0
|
182407.0
|
Gorffennaf 2019
|
390932.0
|
354914.0
|
308168.0
|
190001.0
|
Awst 2019
|
398019.0
|
360809.0
|
313570.0
|
192290.0
|
Medi 2019
|
398509.0
|
360746.0
|
314170.0
|
192486.0
|
Hydref 2019
|
388597.0
|
352263.0
|
306184.0
|
187315.0
|
Tachwedd 2019
|
383220.0
|
348329.0
|
301545.0
|
185060.0
|
Rhagfyr 2019
|
378299.0
|
344782.0
|
297762.0
|
182673.0
|
Ionawr 2020
|
380620.0
|
346829.0
|
299819.0
|
183334.0
|
Chwefror 2020
|
379217.0
|
345088.0
|
298831.0
|
182348.0
|
Mawrth 2020
|
391534.0
|
356024.0
|
307808.0
|
187596.0
|
Ebrill 2020
|
387927.0
|
352628.0
|
305079.0
|
184559.0
|
Mai 2020
|
382197.0
|
348248.0
|
300706.0
|
182224.0
|
Mehefin 2020
|
377630.0
|
344746.0
|
298099.0
|
180198.0
|
Gorffennaf 2020
|
389608.0
|
355516.0
|
307442.0
|
186919.0
|
Awst 2020
|
403652.0
|
367653.0
|
318593.0
|
192068.0
|
Medi 2020
|
414591.0
|
376958.0
|
326606.0
|
195516.0
|
Hydref 2020
|
414523.0
|
376637.0
|
326482.0
|
194154.0
|
Tachwedd 2020
|
417636.0
|
379065.0
|
329215.0
|
196075.0
|
Rhagfyr 2020
|
405643.0
|
367767.0
|
320153.0
|
190552.0
|
Ionawr 2021
|
404182.0
|
366468.0
|
319835.0
|
192138.0
|
Chwefror 2021
|
402693.0
|
365411.0
|
319659.0
|
193413.0
|
Mawrth 2021
|
408929.0
|
371319.0
|
325671.0
|
199094.0
|
Ebrill 2021
|
407602.0
|
370245.0
|
324847.0
|
198206.0
|
Mai 2021
|
405264.0
|
368191.0
|
322660.0
|
196591.0
|
Mehefin 2021
|
413511.0
|
375187.0
|
330440.0
|
200698.0
|
Dyddiad
|
Pob math o eiddo
|
Tai pâr
|
Tai teras
|
Fflatiau a fflatiau deulawr
|
Mehefin 2005
|
2.0
|
2.3
|
3.0
|
1.9
|
Gorffennaf 2005
|
5.1
|
5.3
|
6.0
|
4.7
|
Awst 2005
|
1.7
|
1.6
|
2.6
|
1.2
|
Medi 2005
|
4.4
|
4.3
|
5.6
|
4.0
|
Hydref 2005
|
-1.1
|
-1.2
|
0.1
|
-1.6
|
Tachwedd 2005
|
4.0
|
4.0
|
5.4
|
3.3
|
Rhagfyr 2005
|
4.4
|
4.5
|
5.6
|
3.9
|
Ionawr 2006
|
7.3
|
7.5
|
8.3
|
6.6
|
Chwefror 2006
|
5.3
|
5.3
|
6.4
|
5.1
|
Mawrth 2006
|
2.6
|
2.5
|
3.5
|
2.2
|
Ebrill 2006
|
4.6
|
4.3
|
5.3
|
4.2
|
Mai 2006
|
5.2
|
5.1
|
5.7
|
4.4
|
Mehefin 2006
|
7.1
|
7.0
|
7.4
|
6.4
|
Gorffennaf 2006
|
8.4
|
8.3
|
9.1
|
7.7
|
Awst 2006
|
10.0
|
10.0
|
11.0
|
9.1
|
Medi 2006
|
9.9
|
10.0
|
10.9
|
8.7
|
Hydref 2006
|
10.5
|
10.7
|
11.0
|
9.3
|
Tachwedd 2006
|
9.7
|
9.9
|
10.0
|
8.5
|
Rhagfyr 2006
|
9.2
|
9.3
|
9.5
|
7.8
|
Ionawr 2007
|
5.6
|
5.7
|
5.7
|
4.2
|
Chwefror 2007
|
6.8
|
7.0
|
6.9
|
5.7
|
Mawrth 2007
|
9.4
|
9.5
|
9.8
|
8.7
|
Ebrill 2007
|
7.8
|
7.7
|
8.5
|
7.3
|
Mai 2007
|
6.8
|
6.6
|
7.8
|
6.5
|
Mehefin 2007
|
4.8
|
4.5
|
5.6
|
4.5
|
Gorffennaf 2007
|
4.6
|
4.4
|
5.0
|
4.4
|
Awst 2007
|
3.4
|
3.2
|
3.5
|
2.7
|
Medi 2007
|
4.9
|
4.6
|
4.7
|
4.4
|
Hydref 2007
|
5.9
|
5.6
|
6.0
|
5.5
|
Tachwedd 2007
|
7.2
|
6.6
|
7.0
|
7.1
|
Rhagfyr 2007
|
5.4
|
4.9
|
5.1
|
5.2
|
Ionawr 2008
|
8.4
|
7.7
|
7.8
|
8.4
|
Chwefror 2008
|
5.0
|
4.5
|
4.6
|
4.4
|
Mawrth 2008
|
2.1
|
1.8
|
1.7
|
1.3
|
Ebrill 2008
|
-0.4
|
-0.4
|
-0.8
|
-1.5
|
Mai 2008
|
1.9
|
2.0
|
1.5
|
0.4
|
Mehefin 2008
|
0.9
|
1.0
|
0.4
|
-0.9
|
Gorffennaf 2008
|
0.7
|
0.7
|
0.4
|
-0.9
|
Awst 2008
|
-2.7
|
-2.7
|
-3.0
|
-3.6
|
Medi 2008
|
-3.8
|
-4.1
|
-4.1
|
-4.4
|
Hydref 2008
|
-9.6
|
-9.8
|
-10.2
|
-10.4
|
Tachwedd 2008
|
-13.4
|
-13.4
|
-13.7
|
-14.4
|
Rhagfyr 2008
|
-13.0
|
-12.8
|
-13.2
|
-14.3
|
Ionawr 2009
|
-12.9
|
-12.9
|
-13.2
|
-14.2
|
Chwefror 2009
|
-8.8
|
-8.9
|
-9.3
|
-10.0
|
Mawrth 2009
|
-11.4
|
-11.9
|
-12.4
|
-11.8
|
Ebrill 2009
|
-12.2
|
-12.4
|
-12.8
|
-12.2
|
Mai 2009
|
-15.5
|
-15.7
|
-15.9
|
-15.6
|
Mehefin 2009
|
-13.2
|
-13.2
|
-13.3
|
-13.8
|
Gorffennaf 2009
|
-11.1
|
-11.3
|
-11.4
|
-12.5
|
Awst 2009
|
-5.5
|
-5.5
|
-5.4
|
-7.2
|
Medi 2009
|
-4.0
|
-3.9
|
-3.8
|
-6.1
|
Hydref 2009
|
4.2
|
4.5
|
4.8
|
1.5
|
Tachwedd 2009
|
5.7
|
5.7
|
6.2
|
2.3
|
Rhagfyr 2009
|
8.0
|
8.1
|
8.6
|
4.4
|
Ionawr 2010
|
6.3
|
6.7
|
7.2
|
2.5
|
Chwefror 2010
|
5.6
|
6.4
|
6.5
|
1.2
|
Mawrth 2010
|
9.1
|
9.9
|
9.9
|
3.8
|
Ebrill 2010
|
12.1
|
12.6
|
12.2
|
6.5
|
Mai 2010
|
13.0
|
13.2
|
12.8
|
8.2
|
Mehefin 2010
|
14.8
|
15.0
|
14.4
|
10.3
|
Gorffennaf 2010
|
12.1
|
12.2
|
11.6
|
8.1
|
Awst 2010
|
8.8
|
9.1
|
8.0
|
4.7
|
Medi 2010
|
5.3
|
5.4
|
4.3
|
1.0
|
Hydref 2010
|
2.8
|
3.1
|
1.9
|
-0.9
|
Tachwedd 2010
|
4.3
|
4.6
|
3.3
|
1.0
|
Rhagfyr 2010
|
5.5
|
5.8
|
4.0
|
2.4
|
Ionawr 2011
|
3.2
|
3.4
|
1.7
|
0.3
|
Chwefror 2011
|
2.8
|
2.4
|
1.4
|
0.4
|
Mawrth 2011
|
-0.4
|
-1.0
|
-1.5
|
-2.8
|
Ebrill 2011
|
-0.0
|
-0.6
|
-0.9
|
-2.4
|
Mai 2011
|
0.2
|
-0.1
|
-0.6
|
-2.1
|
Mehefin 2011
|
-2.5
|
-2.5
|
-3.2
|
-4.1
|
Gorffennaf 2011
|
-5.3
|
-5.1
|
-5.6
|
-5.9
|
Awst 2011
|
-6.2
|
-6.1
|
-6.4
|
-7.1
|
Medi 2011
|
-1.8
|
-1.8
|
-2.0
|
-2.7
|
Hydref 2011
|
0.3
|
0.3
|
-0.4
|
-1.5
|
Tachwedd 2011
|
0.2
|
0.3
|
-0.4
|
-1.2
|
Rhagfyr 2011
|
-5.8
|
-5.8
|
-6.3
|
-6.8
|
Ionawr 2012
|
-3.6
|
-3.5
|
-3.9
|
-4.5
|
Chwefror 2012
|
-3.3
|
-3.0
|
-3.5
|
-4.8
|
Mawrth 2012
|
2.7
|
3.4
|
2.9
|
1.3
|
Ebrill 2012
|
3.6
|
4.0
|
3.6
|
2.7
|
Mai 2012
|
3.2
|
3.5
|
3.3
|
2.5
|
Mehefin 2012
|
5.0
|
4.8
|
5.2
|
3.6
|
Gorffennaf 2012
|
5.2
|
4.9
|
5.2
|
3.2
|
Awst 2012
|
6.5
|
6.2
|
6.6
|
4.9
|
Medi 2012
|
3.6
|
3.4
|
3.7
|
2.6
|
Hydref 2012
|
3.5
|
3.3
|
4.2
|
3.1
|
Tachwedd 2012
|
2.8
|
2.6
|
3.6
|
1.7
|
Rhagfyr 2012
|
4.2
|
4.0
|
5.1
|
2.4
|
Ionawr 2013
|
4.4
|
4.3
|
5.1
|
2.5
|
Chwefror 2013
|
2.3
|
2.2
|
2.8
|
1.1
|
Mawrth 2013
|
-2.3
|
-2.3
|
-2.1
|
-3.2
|
Ebrill 2013
|
-3.7
|
-3.7
|
-3.4
|
-5.4
|
Mai 2013
|
-1.1
|
-1.0
|
-1.0
|
-3.1
|
Mehefin 2013
|
2.0
|
2.3
|
2.0
|
0.1
|
Gorffennaf 2013
|
1.7
|
2.0
|
1.8
|
0.2
|
Awst 2013
|
4.0
|
4.4
|
4.1
|
2.7
|
Medi 2013
|
4.0
|
4.3
|
4.2
|
2.7
|
Hydref 2013
|
4.8
|
5.0
|
4.7
|
3.3
|
Tachwedd 2013
|
4.7
|
5.0
|
4.5
|
3.3
|
Rhagfyr 2013
|
6.3
|
6.9
|
6.2
|
5.8
|
Ionawr 2014
|
5.4
|
6.0
|
5.5
|
5.6
|
Chwefror 2014
|
4.4
|
4.8
|
4.4
|
4.5
|
Mawrth 2014
|
8.0
|
8.5
|
7.9
|
7.6
|
Ebrill 2014
|
9.9
|
10.5
|
9.7
|
9.3
|
Mai 2014
|
9.4
|
10.0
|
9.4
|
8.8
|
Mehefin 2014
|
4.5
|
5.1
|
4.6
|
4.1
|
Gorffennaf 2014
|
6.9
|
7.6
|
6.9
|
6.1
|
Awst 2014
|
5.7
|
6.3
|
5.7
|
5.0
|
Medi 2014
|
8.1
|
8.8
|
8.2
|
7.4
|
Hydref 2014
|
6.0
|
6.7
|
6.2
|
6.0
|
Tachwedd 2014
|
6.0
|
6.5
|
6.0
|
6.0
|
Rhagfyr 2014
|
5.1
|
5.4
|
4.9
|
4.9
|
Ionawr 2015
|
5.5
|
5.7
|
5.1
|
4.8
|
Chwefror 2015
|
8.1
|
8.1
|
7.8
|
7.1
|
Mawrth 2015
|
6.0
|
5.9
|
5.6
|
5.2
|
Ebrill 2015
|
3.3
|
3.0
|
2.8
|
2.7
|
Mai 2015
|
1.7
|
1.7
|
1.0
|
1.2
|
Mehefin 2015
|
2.2
|
2.3
|
1.7
|
1.3
|
Gorffennaf 2015
|
1.6
|
1.8
|
1.1
|
0.7
|
Awst 2015
|
2.2
|
2.5
|
1.9
|
1.5
|
Medi 2015
|
1.4
|
1.6
|
0.9
|
0.8
|
Hydref 2015
|
3.9
|
4.1
|
3.6
|
3.1
|
Tachwedd 2015
|
7.7
|
7.9
|
7.3
|
6.5
|
Rhagfyr 2015
|
10.4
|
10.6
|
9.9
|
8.8
|
Ionawr 2016
|
13.0
|
13.4
|
12.5
|
11.3
|
Chwefror 2016
|
8.4
|
9.0
|
7.9
|
7.0
|
Mawrth 2016
|
9.6
|
10.2
|
9.4
|
8.7
|
Ebrill 2016
|
7.4
|
8.0
|
7.2
|
6.9
|
Mai 2016
|
6.0
|
6.2
|
5.8
|
6.1
|
Mehefin 2016
|
4.7
|
4.7
|
4.2
|
5.2
|
Gorffennaf 2016
|
4.3
|
4.1
|
3.8
|
4.7
|
Awst 2016
|
6.4
|
6.1
|
5.8
|
6.9
|
Medi 2016
|
6.2
|
6.4
|
5.8
|
6.7
|
Hydref 2016
|
4.3
|
4.4
|
3.5
|
5.2
|
Tachwedd 2016
|
0.5
|
0.5
|
-0.6
|
1.4
|
Rhagfyr 2016
|
-1.4
|
-1.6
|
-2.4
|
-0.0
|
Ionawr 2017
|
-1.6
|
-2.0
|
-2.5
|
-0.1
|
Chwefror 2017
|
2.6
|
2.2
|
1.8
|
4.9
|
Mawrth 2017
|
1.9
|
1.6
|
0.9
|
3.8
|
Ebrill 2017
|
5.0
|
5.1
|
4.2
|
6.1
|
Mai 2017
|
4.3
|
4.4
|
3.1
|
5.1
|
Mehefin 2017
|
6.8
|
6.8
|
5.4
|
8.1
|
Gorffennaf 2017
|
8.0
|
8.2
|
6.7
|
9.7
|
Awst 2017
|
4.5
|
4.6
|
3.4
|
5.9
|
Medi 2017
|
4.1
|
4.0
|
3.1
|
5.0
|
Hydref 2017
|
5.0
|
5.0
|
4.2
|
4.9
|
Tachwedd 2017
|
8.4
|
8.6
|
8.0
|
8.5
|
Rhagfyr 2017
|
7.1
|
7.6
|
6.9
|
6.9
|
Ionawr 2018
|
5.9
|
6.4
|
5.7
|
6.0
|
Chwefror 2018
|
2.9
|
3.3
|
2.4
|
1.9
|
Mawrth 2018
|
3.1
|
3.5
|
2.9
|
1.7
|
Ebrill 2018
|
1.5
|
2.1
|
1.7
|
-0.5
|
Mai 2018
|
2.5
|
3.1
|
3.0
|
0.0
|
Mehefin 2018
|
-0.2
|
0.6
|
0.2
|
-2.8
|
Gorffennaf 2018
|
3.6
|
4.1
|
3.8
|
0.6
|
Awst 2018
|
3.7
|
4.4
|
4.0
|
1.4
|
Medi 2018
|
3.6
|
4.1
|
3.8
|
1.2
|
Hydref 2018
|
0.9
|
1.5
|
1.1
|
-0.7
|
Tachwedd 2018
|
-0.5
|
0.1
|
-0.3
|
-2.3
|
Rhagfyr 2018
|
2.8
|
3.3
|
2.8
|
1.1
|
Ionawr 2019
|
0.2
|
0.6
|
0.1
|
-1.8
|
Chwefror 2019
|
1.8
|
2.3
|
1.7
|
0.3
|
Mawrth 2019
|
2.8
|
3.1
|
2.5
|
1.3
|
Ebrill 2019
|
6.5
|
6.8
|
6.3
|
5.3
|
Mai 2019
|
8.2
|
8.4
|
8.0
|
7.2
|
Mehefin 2019
|
6.7
|
6.7
|
6.8
|
5.6
|
Gorffennaf 2019
|
5.6
|
5.6
|
5.7
|
4.8
|
Awst 2019
|
6.6
|
6.6
|
6.5
|
5.1
|
Medi 2019
|
5.4
|
5.2
|
5.3
|
4.3
|
Hydref 2019
|
4.1
|
4.0
|
4.1
|
2.6
|
Tachwedd 2019
|
1.6
|
1.7
|
1.5
|
0.5
|
Rhagfyr 2019
|
-0.7
|
-0.4
|
-0.6
|
-2.1
|
Ionawr 2020
|
1.9
|
2.3
|
2.3
|
0.5
|
Chwefror 2020
|
1.4
|
1.7
|
2.1
|
-0.2
|
Mawrth 2020
|
4.3
|
4.6
|
4.8
|
2.6
|
Ebrill 2020
|
2.5
|
2.7
|
2.8
|
0.2
|
Mai 2020
|
0.6
|
0.9
|
0.6
|
-1.3
|
Mehefin 2020
|
0.5
|
1.0
|
0.6
|
-1.2
|
Gorffennaf 2020
|
-0.3
|
0.2
|
-0.2
|
-1.6
|
Awst 2020
|
1.4
|
1.9
|
1.6
|
-0.1
|
Medi 2020
|
4.0
|
4.5
|
4.0
|
1.6
|
Hydref 2020
|
6.7
|
6.9
|
6.6
|
3.6
|
Tachwedd 2020
|
9.0
|
8.8
|
9.2
|
6.0
|
Rhagfyr 2020
|
7.2
|
6.7
|
7.5
|
4.3
|
Ionawr 2021
|
6.2
|
5.7
|
6.7
|
4.8
|
Chwefror 2021
|
6.2
|
5.9
|
7.0
|
6.1
|
Mawrth 2021
|
4.4
|
4.3
|
5.8
|
6.1
|
Ebrill 2021
|
5.1
|
5.0
|
6.5
|
7.4
|
Mai 2021
|
6.0
|
5.7
|
7.3
|
7.9
|
Mehefin 2021
|
9.5
|
8.8
|
10.8
|
11.4
|
Dyddiad
|
Pob math o eiddo
|
Tai pâr
|
Tai teras
|
Fflatiau a fflatiau deulawr
|
Mehefin 2005
|
-0.2
|
-0.2
|
-0.1
|
-0.2
|
Gorffennaf 2005
|
1.1
|
1.0
|
0.9
|
0.7
|
Awst 2005
|
-0.2
|
-0.4
|
-0.3
|
-0.5
|
Medi 2005
|
0.4
|
0.3
|
0.4
|
0.1
|
Hydref 2005
|
-2.1
|
-2.3
|
-2.0
|
-1.8
|
Tachwedd 2005
|
1.3
|
1.4
|
1.5
|
1.4
|
Rhagfyr 2005
|
0.8
|
0.9
|
1.0
|
1.6
|
Ionawr 2006
|
1.7
|
1.7
|
1.8
|
1.4
|
Chwefror 2006
|
0.0
|
-0.0
|
0.1
|
0.2
|
Mawrth 2006
|
-0.7
|
-0.6
|
-0.7
|
-1.3
|
Ebrill 2006
|
2.4
|
2.6
|
2.5
|
2.5
|
Mai 2006
|
0.6
|
0.6
|
0.4
|
0.4
|
Mehefin 2006
|
1.6
|
1.6
|
1.6
|
1.7
|
Gorffennaf 2006
|
2.3
|
2.2
|
2.5
|
1.9
|
Awst 2006
|
1.3
|
1.3
|
1.5
|
0.8
|
Medi 2006
|
0.3
|
0.3
|
0.2
|
-0.3
|
Hydref 2006
|
-1.6
|
-1.7
|
-1.8
|
-1.3
|
Tachwedd 2006
|
0.6
|
0.7
|
0.6
|
0.7
|
Rhagfyr 2006
|
0.4
|
0.3
|
0.6
|
0.9
|
Ionawr 2007
|
-1.7
|
-1.6
|
-1.7
|
-2.0
|
Chwefror 2007
|
1.2
|
1.2
|
1.2
|
1.6
|
Mawrth 2007
|
1.7
|
1.8
|
1.9
|
1.5
|
Ebrill 2007
|
1.0
|
0.9
|
1.3
|
1.1
|
Mai 2007
|
-0.4
|
-0.4
|
-0.2
|
-0.3
|
Mehefin 2007
|
-0.4
|
-0.5
|
-0.5
|
-0.2
|
Gorffennaf 2007
|
2.2
|
2.2
|
1.9
|
1.8
|
Awst 2007
|
0.1
|
0.0
|
-0.0
|
-0.8
|
Medi 2007
|
1.8
|
1.7
|
1.4
|
1.3
|
Hydref 2007
|
-0.7
|
-0.8
|
-0.6
|
-0.2
|
Tachwedd 2007
|
1.8
|
1.7
|
1.5
|
2.2
|
Rhagfyr 2007
|
-1.2
|
-1.3
|
-1.2
|
-0.8
|
Ionawr 2008
|
1.1
|
1.0
|
0.9
|
1.0
|
Chwefror 2008
|
-1.9
|
-1.8
|
-1.8
|
-2.1
|
Mawrth 2008
|
-1.1
|
-0.8
|
-0.8
|
-1.5
|
Ebrill 2008
|
-1.5
|
-1.2
|
-1.2
|
-1.7
|
Mai 2008
|
1.9
|
1.9
|
2.0
|
1.7
|
Mehefin 2008
|
-1.3
|
-1.5
|
-1.6
|
-1.6
|
Gorffennaf 2008
|
2.0
|
2.0
|
1.9
|
1.8
|
Awst 2008
|
-3.2
|
-3.4
|
-3.4
|
-3.5
|
Medi 2008
|
0.5
|
0.3
|
0.3
|
0.5
|
Hydref 2008
|
-6.6
|
-6.7
|
-6.9
|
-6.5
|
Tachwedd 2008
|
-2.5
|
-2.4
|
-2.5
|
-2.3
|
Rhagfyr 2008
|
-0.8
|
-0.7
|
-0.5
|
-0.8
|
Ionawr 2009
|
1.3
|
1.0
|
0.9
|
1.1
|
Chwefror 2009
|
2.7
|
2.7
|
2.5
|
2.8
|
Mawrth 2009
|
-4.0
|
-4.0
|
-4.2
|
-3.5
|
Ebrill 2009
|
-2.3
|
-1.9
|
-1.7
|
-2.1
|
Mai 2009
|
-1.9
|
-1.8
|
-1.6
|
-2.4
|
Mehefin 2009
|
1.3
|
1.3
|
1.4
|
0.6
|
Gorffennaf 2009
|
4.4
|
4.2
|
4.2
|
3.3
|
Awst 2009
|
2.9
|
2.9
|
3.0
|
2.4
|
Medi 2009
|
2.0
|
2.0
|
2.0
|
1.6
|
Hydref 2009
|
1.4
|
1.5
|
1.4
|
1.1
|
Tachwedd 2009
|
-1.1
|
-1.3
|
-1.2
|
-1.4
|
Rhagfyr 2009
|
1.4
|
1.6
|
1.8
|
1.2
|
Ionawr 2010
|
-0.4
|
-0.4
|
-0.4
|
-0.8
|
Chwefror 2010
|
2.1
|
2.5
|
1.8
|
1.5
|
Mawrth 2010
|
-0.8
|
-0.9
|
-1.2
|
-1.0
|
Ebrill 2010
|
0.4
|
0.6
|
0.4
|
0.5
|
Mai 2010
|
-1.1
|
-1.3
|
-1.1
|
-0.8
|
Mehefin 2010
|
2.8
|
2.9
|
2.9
|
2.5
|
Gorffennaf 2010
|
2.0
|
1.8
|
1.7
|
1.2
|
Awst 2010
|
-0.1
|
0.1
|
-0.3
|
-0.9
|
Medi 2010
|
-1.3
|
-1.4
|
-1.5
|
-1.9
|
Hydref 2010
|
-0.9
|
-0.8
|
-0.8
|
-0.8
|
Tachwedd 2010
|
0.3
|
0.1
|
0.1
|
0.5
|
Rhagfyr 2010
|
2.6
|
2.8
|
2.5
|
2.6
|
Ionawr 2011
|
-2.5
|
-2.6
|
-2.7
|
-2.8
|
Chwefror 2011
|
1.6
|
1.5
|
1.6
|
1.5
|
Mawrth 2011
|
-3.9
|
-4.2
|
-4.0
|
-4.2
|
Ebrill 2011
|
0.8
|
0.9
|
1.0
|
0.9
|
Mai 2011
|
-0.9
|
-0.8
|
-0.7
|
-0.5
|
Mehefin 2011
|
0.0
|
0.4
|
0.1
|
0.4
|
Gorffennaf 2011
|
-0.9
|
-1.0
|
-0.8
|
-0.7
|
Awst 2011
|
-1.1
|
-1.0
|
-1.2
|
-2.1
|
Medi 2011
|
3.3
|
3.2
|
3.1
|
2.7
|
Hydref 2011
|
1.2
|
1.3
|
0.7
|
0.5
|
Tachwedd 2011
|
0.2
|
0.1
|
0.2
|
0.8
|
Rhagfyr 2011
|
-3.6
|
-3.4
|
-3.6
|
-3.3
|
Ionawr 2012
|
-0.2
|
-0.2
|
-0.1
|
-0.4
|
Chwefror 2012
|
2.0
|
2.0
|
2.0
|
1.2
|
Mawrth 2012
|
2.1
|
2.1
|
2.4
|
2.0
|
Ebrill 2012
|
1.6
|
1.5
|
1.7
|
2.3
|
Mai 2012
|
-1.3
|
-1.2
|
-1.0
|
-0.7
|
Mehefin 2012
|
1.8
|
1.6
|
1.9
|
1.5
|
Gorffennaf 2012
|
-0.7
|
-0.8
|
-0.8
|
-1.1
|
Awst 2012
|
0.2
|
0.1
|
0.1
|
-0.5
|
Medi 2012
|
0.5
|
0.5
|
0.4
|
0.4
|
Hydref 2012
|
1.1
|
1.2
|
1.2
|
1.0
|
Tachwedd 2012
|
-0.6
|
-0.6
|
-0.4
|
-0.5
|
Rhagfyr 2012
|
-2.2
|
-2.2
|
-2.2
|
-2.7
|
Ionawr 2013
|
-0.1
|
0.1
|
-0.2
|
-0.3
|
Chwefror 2013
|
-0.1
|
0.0
|
-0.2
|
-0.2
|
Mawrth 2013
|
-2.5
|
-2.4
|
-2.5
|
-2.4
|
Ebrill 2013
|
0.2
|
0.1
|
0.4
|
0.0
|
Mai 2013
|
1.4
|
1.4
|
1.5
|
1.6
|
Mehefin 2013
|
4.9
|
5.0
|
5.0
|
4.8
|
Gorffennaf 2013
|
-1.1
|
-1.1
|
-1.0
|
-0.9
|
Awst 2013
|
2.5
|
2.5
|
2.4
|
1.9
|
Medi 2013
|
0.5
|
0.4
|
0.5
|
0.4
|
Hydref 2013
|
1.9
|
1.9
|
1.6
|
1.5
|
Tachwedd 2013
|
-0.7
|
-0.5
|
-0.5
|
-0.5
|
Rhagfyr 2013
|
-0.7
|
-0.4
|
-0.7
|
-0.3
|
Ionawr 2014
|
-0.9
|
-0.8
|
-0.8
|
-0.5
|
Chwefror 2014
|
-1.0
|
-1.1
|
-1.3
|
-1.2
|
Mawrth 2014
|
0.9
|
1.0
|
0.8
|
0.5
|
Ebrill 2014
|
1.9
|
2.0
|
2.0
|
1.6
|
Mai 2014
|
0.9
|
1.0
|
1.2
|
1.1
|
Mehefin 2014
|
0.3
|
0.3
|
0.3
|
0.3
|
Gorffennaf 2014
|
1.2
|
1.2
|
1.2
|
1.0
|
Awst 2014
|
1.3
|
1.3
|
1.2
|
0.9
|
Medi 2014
|
2.8
|
2.7
|
2.9
|
2.7
|
Hydref 2014
|
-0.1
|
-0.1
|
-0.3
|
0.2
|
Tachwedd 2014
|
-0.7
|
-0.7
|
-0.8
|
-0.4
|
Rhagfyr 2014
|
-1.5
|
-1.5
|
-1.7
|
-1.4
|
Ionawr 2015
|
-0.5
|
-0.5
|
-0.7
|
-0.6
|
Chwefror 2015
|
1.4
|
1.2
|
1.3
|
1.0
|
Mawrth 2015
|
-1.1
|
-1.1
|
-1.3
|
-1.3
|
Ebrill 2015
|
-0.7
|
-0.8
|
-0.6
|
-0.7
|
Mai 2015
|
-0.6
|
-0.3
|
-0.5
|
-0.4
|
Mehefin 2015
|
0.7
|
0.9
|
1.0
|
0.4
|
Gorffennaf 2015
|
0.6
|
0.7
|
0.6
|
0.4
|
Awst 2015
|
2.0
|
2.0
|
2.0
|
1.6
|
Medi 2015
|
2.1
|
1.8
|
1.9
|
2.1
|
Hydref 2015
|
2.3
|
2.4
|
2.4
|
2.4
|
Tachwedd 2015
|
2.9
|
3.0
|
2.8
|
2.9
|
Rhagfyr 2015
|
0.9
|
1.0
|
0.7
|
0.7
|
Ionawr 2016
|
1.9
|
2.0
|
1.6
|
1.6
|
Chwefror 2016
|
-2.7
|
-2.7
|
-2.8
|
-2.8
|
Mawrth 2016
|
-0.0
|
-0.1
|
0.0
|
0.3
|
Ebrill 2016
|
-2.7
|
-2.8
|
-2.6
|
-2.4
|
Mai 2016
|
-1.9
|
-2.0
|
-1.8
|
-1.2
|
Mehefin 2016
|
-0.5
|
-0.5
|
-0.5
|
-0.4
|
Gorffennaf 2016
|
0.2
|
0.1
|
0.2
|
0.0
|
Awst 2016
|
4.0
|
4.0
|
4.0
|
3.8
|
Medi 2016
|
1.9
|
2.1
|
1.8
|
1.9
|
Hydref 2016
|
0.4
|
0.4
|
0.1
|
0.9
|
Tachwedd 2016
|
-0.8
|
-0.8
|
-1.2
|
-0.8
|
Rhagfyr 2016
|
-1.0
|
-1.2
|
-1.2
|
-0.7
|
Ionawr 2017
|
1.7
|
1.6
|
1.6
|
1.5
|
Chwefror 2017
|
1.4
|
1.4
|
1.4
|
2.0
|
Mawrth 2017
|
-0.7
|
-0.6
|
-0.9
|
-0.7
|
Ebrill 2017
|
-1.2
|
-1.3
|
-1.4
|
-1.1
|
Mai 2017
|
-2.1
|
-1.9
|
-2.2
|
-2.0
|
Mehefin 2017
|
2.9
|
2.9
|
3.1
|
3.2
|
Gorffennaf 2017
|
1.3
|
1.5
|
1.4
|
1.4
|
Awst 2017
|
0.7
|
0.6
|
0.9
|
0.2
|
Medi 2017
|
1.5
|
1.5
|
1.5
|
1.1
|
Hydref 2017
|
1.3
|
1.3
|
1.3
|
0.8
|
Tachwedd 2017
|
2.5
|
2.6
|
2.4
|
2.6
|
Rhagfyr 2017
|
-2.2
|
-2.1
|
-2.2
|
-2.1
|
Ionawr 2018
|
0.5
|
0.6
|
0.5
|
0.7
|
Chwefror 2018
|
-1.4
|
-1.6
|
-1.7
|
-2.0
|
Mawrth 2018
|
-0.5
|
-0.4
|
-0.4
|
-0.8
|
Ebrill 2018
|
-2.7
|
-2.6
|
-2.5
|
-3.2
|
Mai 2018
|
-1.2
|
-0.9
|
-0.9
|
-1.5
|
Mehefin 2018
|
0.2
|
0.4
|
0.3
|
0.3
|
Gorffennaf 2018
|
5.2
|
5.0
|
5.1
|
5.0
|
Awst 2018
|
0.8
|
0.8
|
1.0
|
0.9
|
Medi 2018
|
1.3
|
1.3
|
1.3
|
0.9
|
Hydref 2018
|
-1.3
|
-1.2
|
-1.4
|
-1.1
|
Tachwedd 2018
|
1.1
|
1.1
|
1.0
|
0.9
|
Rhagfyr 2018
|
1.0
|
1.0
|
0.8
|
1.4
|
Ionawr 2019
|
-2.0
|
-2.0
|
-2.2
|
-2.2
|
Chwefror 2019
|
0.2
|
0.0
|
-0.1
|
0.2
|
Mawrth 2019
|
0.4
|
0.3
|
0.3
|
0.1
|
Ebrill 2019
|
0.8
|
0.9
|
1.1
|
0.7
|
Mai 2019
|
0.4
|
0.5
|
0.7
|
0.3
|
Mehefin 2019
|
-1.1
|
-1.1
|
-0.8
|
-1.2
|
Gorffennaf 2019
|
4.0
|
4.0
|
4.0
|
4.2
|
Awst 2019
|
1.8
|
1.7
|
1.8
|
1.2
|
Medi 2019
|
0.1
|
-0.0
|
0.2
|
0.1
|
Hydref 2019
|
-2.5
|
-2.4
|
-2.5
|
-2.7
|
Tachwedd 2019
|
-1.4
|
-1.1
|
-1.5
|
-1.2
|
Rhagfyr 2019
|
-1.3
|
-1.0
|
-1.2
|
-1.3
|
Ionawr 2020
|
0.6
|
0.6
|
0.7
|
0.4
|
Chwefror 2020
|
-0.4
|
-0.5
|
-0.3
|
-0.5
|
Mawrth 2020
|
3.2
|
3.2
|
3.0
|
2.9
|
Ebrill 2020
|
-0.9
|
-1.0
|
-0.9
|
-1.6
|
Mai 2020
|
-1.5
|
-1.2
|
-1.4
|
-1.3
|
Mehefin 2020
|
-1.2
|
-1.0
|
-0.9
|
-1.1
|
Gorffennaf 2020
|
3.2
|
3.1
|
3.1
|
3.7
|
Awst 2020
|
3.6
|
3.4
|
3.6
|
2.8
|
Medi 2020
|
2.7
|
2.5
|
2.5
|
1.8
|
Hydref 2020
|
-0.0
|
-0.1
|
-0.0
|
-0.7
|
Tachwedd 2020
|
0.8
|
0.6
|
0.8
|
1.0
|
Rhagfyr 2020
|
-2.9
|
-3.0
|
-2.8
|
-2.8
|
Ionawr 2021
|
-0.4
|
-0.4
|
-0.1
|
0.8
|
Chwefror 2021
|
-0.4
|
-0.3
|
-0.1
|
0.7
|
Mawrth 2021
|
1.5
|
1.6
|
1.9
|
2.9
|
Ebrill 2021
|
-0.3
|
-0.3
|
-0.3
|
-0.4
|
Mai 2021
|
-0.6
|
-0.6
|
-0.7
|
-0.8
|
Mehefin 2021
|
2.0
|
1.9
|
2.4
|
2.1
|
Dyddiad
|
Pob math o eiddo
|
Tai pâr
|
Tai teras
|
Fflatiau a fflatiau deulawr
|
Mehefin 2005
|
79.3
|
79.0
|
80.0
|
90.2
|
Gorffennaf 2005
|
80.2
|
79.8
|
80.7
|
90.8
|
Awst 2005
|
80.0
|
79.5
|
80.5
|
90.4
|
Medi 2005
|
80.3
|
79.7
|
80.8
|
90.4
|
Hydref 2005
|
78.6
|
77.9
|
79.2
|
88.8
|
Tachwedd 2005
|
79.6
|
79.0
|
80.4
|
90.1
|
Rhagfyr 2005
|
80.3
|
79.7
|
81.2
|
91.5
|
Ionawr 2006
|
81.7
|
81.1
|
82.7
|
92.8
|
Chwefror 2006
|
81.7
|
81.1
|
82.8
|
92.9
|
Mawrth 2006
|
81.2
|
80.6
|
82.2
|
91.8
|
Ebrill 2006
|
83.2
|
82.7
|
84.2
|
94.0
|
Mai 2006
|
83.6
|
83.2
|
84.6
|
94.4
|
Mehefin 2006
|
84.9
|
84.5
|
85.9
|
96.0
|
Gorffennaf 2006
|
86.9
|
86.4
|
88.0
|
97.8
|
Awst 2006
|
88.0
|
87.4
|
89.4
|
98.6
|
Medi 2006
|
88.3
|
87.7
|
89.6
|
98.3
|
Hydref 2006
|
86.8
|
86.2
|
88.0
|
97.1
|
Tachwedd 2006
|
87.4
|
86.8
|
88.4
|
97.8
|
Rhagfyr 2006
|
87.7
|
87.1
|
89.0
|
98.7
|
Ionawr 2007
|
86.2
|
85.7
|
87.5
|
96.7
|
Chwefror 2007
|
87.3
|
86.7
|
88.6
|
98.3
|
Mawrth 2007
|
88.8
|
88.3
|
90.3
|
99.8
|
Ebrill 2007
|
89.7
|
89.1
|
91.4
|
100.9
|
Mai 2007
|
89.3
|
88.7
|
91.2
|
100.5
|
Mehefin 2007
|
89.0
|
88.3
|
90.7
|
100.3
|
Gorffennaf 2007
|
90.9
|
90.2
|
92.5
|
102.1
|
Awst 2007
|
91.0
|
90.2
|
92.5
|
101.3
|
Medi 2007
|
92.6
|
91.8
|
93.8
|
102.6
|
Hydref 2007
|
92.0
|
91.0
|
93.2
|
102.4
|
Tachwedd 2007
|
93.6
|
92.6
|
94.6
|
104.7
|
Rhagfyr 2007
|
92.5
|
91.4
|
93.5
|
103.8
|
Ionawr 2008
|
93.5
|
92.3
|
94.3
|
104.8
|
Chwefror 2008
|
91.7
|
90.6
|
92.6
|
102.6
|
Mawrth 2008
|
90.7
|
89.9
|
91.8
|
101.1
|
Ebrill 2008
|
89.3
|
88.8
|
90.7
|
99.3
|
Mai 2008
|
91.0
|
90.5
|
92.6
|
101.0
|
Mehefin 2008
|
89.8
|
89.1
|
91.1
|
99.4
|
Gorffennaf 2008
|
91.5
|
90.8
|
92.9
|
101.1
|
Awst 2008
|
88.6
|
87.8
|
89.7
|
97.6
|
Medi 2008
|
89.0
|
88.0
|
89.9
|
98.1
|
Hydref 2008
|
83.1
|
82.1
|
83.7
|
91.7
|
Tachwedd 2008
|
81.0
|
80.2
|
81.6
|
89.7
|
Rhagfyr 2008
|
80.4
|
79.6
|
81.2
|
88.9
|
Ionawr 2009
|
81.4
|
80.4
|
81.9
|
89.9
|
Chwefror 2009
|
83.7
|
82.6
|
84.0
|
92.4
|
Mawrth 2009
|
80.3
|
79.2
|
80.5
|
89.1
|
Ebrill 2009
|
78.5
|
77.7
|
79.1
|
87.2
|
Mai 2009
|
76.9
|
76.3
|
77.9
|
85.2
|
Mehefin 2009
|
77.9
|
77.3
|
79.0
|
85.7
|
Gorffennaf 2009
|
81.4
|
80.6
|
82.3
|
88.5
|
Awst 2009
|
83.7
|
82.9
|
84.8
|
90.6
|
Medi 2009
|
85.4
|
84.6
|
86.5
|
92.0
|
Hydref 2009
|
86.6
|
85.8
|
87.8
|
93.1
|
Tachwedd 2009
|
85.6
|
84.7
|
86.7
|
91.8
|
Rhagfyr 2009
|
86.9
|
86.1
|
88.2
|
92.9
|
Ionawr 2010
|
86.6
|
85.7
|
87.8
|
92.1
|
Chwefror 2010
|
88.4
|
87.9
|
89.5
|
93.5
|
Mawrth 2010
|
87.6
|
87.0
|
88.4
|
92.5
|
Ebrill 2010
|
88.0
|
87.5
|
88.8
|
92.9
|
Mai 2010
|
87.0
|
86.4
|
87.8
|
92.2
|
Mehefin 2010
|
89.4
|
88.9
|
90.4
|
94.5
|
Gorffennaf 2010
|
91.2
|
90.4
|
91.9
|
95.7
|
Awst 2010
|
91.1
|
90.5
|
91.6
|
94.8
|
Medi 2010
|
89.9
|
89.2
|
90.2
|
93.0
|
Hydref 2010
|
89.1
|
88.5
|
89.4
|
92.3
|
Tachwedd 2010
|
89.3
|
88.6
|
89.6
|
92.7
|
Rhagfyr 2010
|
91.6
|
91.1
|
91.8
|
95.1
|
Ionawr 2011
|
89.3
|
88.7
|
89.3
|
92.4
|
Chwefror 2011
|
90.8
|
90.0
|
90.8
|
93.8
|
Mawrth 2011
|
87.3
|
86.2
|
87.1
|
89.9
|
Ebrill 2011
|
87.9
|
87.0
|
88.0
|
90.8
|
Mai 2011
|
87.2
|
86.3
|
87.3
|
90.3
|
Mehefin 2011
|
87.2
|
86.6
|
87.4
|
90.6
|
Gorffennaf 2011
|
86.4
|
85.8
|
86.8
|
90.0
|
Awst 2011
|
85.5
|
84.9
|
85.7
|
88.1
|
Medi 2011
|
88.3
|
87.6
|
88.4
|
90.4
|
Hydref 2011
|
89.4
|
88.8
|
89.0
|
90.9
|
Tachwedd 2011
|
89.5
|
88.8
|
89.2
|
91.6
|
Rhagfyr 2011
|
86.3
|
85.8
|
86.0
|
88.6
|
Ionawr 2012
|
86.1
|
85.6
|
85.9
|
88.2
|
Chwefror 2012
|
87.8
|
87.3
|
87.6
|
89.3
|
Mawrth 2012
|
89.6
|
89.2
|
89.6
|
91.1
|
Ebrill 2012
|
91.1
|
90.5
|
91.2
|
93.2
|
Mai 2012
|
89.9
|
89.4
|
90.2
|
92.5
|
Mehefin 2012
|
91.5
|
90.8
|
92.0
|
93.9
|
Gorffennaf 2012
|
90.8
|
90.0
|
91.2
|
92.8
|
Awst 2012
|
91.0
|
90.2
|
91.4
|
92.4
|
Medi 2012
|
91.5
|
90.6
|
91.7
|
92.8
|
Hydref 2012
|
92.5
|
91.7
|
92.8
|
93.7
|
Tachwedd 2012
|
92.0
|
91.2
|
92.4
|
93.2
|
Rhagfyr 2012
|
90.0
|
89.2
|
90.4
|
90.7
|
Ionawr 2013
|
89.9
|
89.2
|
90.2
|
90.4
|
Chwefror 2013
|
89.8
|
89.2
|
90.0
|
90.3
|
Mawrth 2013
|
87.6
|
87.1
|
87.8
|
88.2
|
Ebrill 2013
|
87.8
|
87.2
|
88.1
|
88.2
|
Mai 2013
|
89.0
|
88.4
|
89.4
|
89.6
|
Mehefin 2013
|
93.4
|
92.9
|
93.8
|
93.9
|
Gorffennaf 2013
|
92.4
|
91.8
|
92.9
|
93.1
|
Awst 2013
|
94.6
|
94.1
|
95.1
|
94.9
|
Medi 2013
|
95.1
|
94.4
|
95.6
|
95.3
|
Hydref 2013
|
96.9
|
96.2
|
97.2
|
96.7
|
Tachwedd 2013
|
96.3
|
95.7
|
96.6
|
96.3
|
Rhagfyr 2013
|
95.6
|
95.3
|
96.0
|
96.0
|
Ionawr 2014
|
94.8
|
94.6
|
95.2
|
95.5
|
Chwefror 2014
|
93.8
|
93.6
|
94.0
|
94.4
|
Mawrth 2014
|
94.6
|
94.5
|
94.7
|
94.8
|
Ebrill 2014
|
96.4
|
96.4
|
96.7
|
96.4
|
Mai 2014
|
97.3
|
97.3
|
97.8
|
97.4
|
Mehefin 2014
|
97.6
|
97.6
|
98.1
|
97.8
|
Gorffennaf 2014
|
98.7
|
98.8
|
99.3
|
98.7
|
Awst 2014
|
100.0
|
100.0
|
100.5
|
99.6
|
Medi 2014
|
102.9
|
102.8
|
103.4
|
102.4
|
Hydref 2014
|
102.8
|
102.7
|
103.2
|
102.5
|
Tachwedd 2014
|
102.0
|
102.0
|
102.4
|
102.1
|
Rhagfyr 2014
|
100.5
|
100.5
|
100.7
|
100.6
|
Ionawr 2015
|
100.0
|
100.0
|
100.0
|
100.0
|
Chwefror 2015
|
101.4
|
101.2
|
101.3
|
101.0
|
Mawrth 2015
|
100.3
|
100.0
|
100.0
|
99.8
|
Ebrill 2015
|
99.6
|
99.2
|
99.4
|
99.0
|
Mai 2015
|
99.0
|
98.9
|
98.8
|
98.6
|
Mehefin 2015
|
99.7
|
99.8
|
99.8
|
99.0
|
Gorffennaf 2015
|
100.3
|
100.5
|
100.4
|
99.5
|
Awst 2015
|
102.2
|
102.5
|
102.4
|
101.1
|
Medi 2015
|
104.4
|
104.4
|
104.4
|
103.2
|
Hydref 2015
|
106.8
|
106.9
|
106.8
|
105.7
|
Tachwedd 2015
|
109.9
|
110.0
|
109.8
|
108.7
|
Rhagfyr 2015
|
110.9
|
111.1
|
110.6
|
109.5
|
Ionawr 2016
|
113.0
|
113.4
|
112.5
|
111.3
|
Chwefror 2016
|
109.9
|
110.3
|
109.3
|
108.1
|
Mawrth 2016
|
109.9
|
110.2
|
109.3
|
108.5
|
Ebrill 2016
|
107.0
|
107.1
|
106.5
|
105.8
|
Mai 2016
|
104.9
|
105.0
|
104.5
|
104.6
|
Mehefin 2016
|
104.4
|
104.5
|
104.0
|
104.2
|
Gorffennaf 2016
|
104.6
|
104.6
|
104.2
|
104.2
|
Awst 2016
|
108.8
|
108.8
|
108.4
|
108.1
|
Medi 2016
|
110.9
|
111.1
|
110.4
|
110.1
|
Hydref 2016
|
111.3
|
111.6
|
110.5
|
111.1
|
Tachwedd 2016
|
110.4
|
110.6
|
109.2
|
110.2
|
Rhagfyr 2016
|
109.3
|
109.3
|
108.0
|
109.5
|
Ionawr 2017
|
111.2
|
111.1
|
109.7
|
111.1
|
Chwefror 2017
|
112.8
|
112.6
|
111.2
|
113.4
|
Mawrth 2017
|
112.0
|
111.9
|
110.3
|
112.6
|
Ebrill 2017
|
110.6
|
110.4
|
108.7
|
111.4
|
Mai 2017
|
108.3
|
108.4
|
106.4
|
109.2
|
Mehefin 2017
|
111.5
|
111.6
|
109.7
|
112.6
|
Gorffennaf 2017
|
112.9
|
113.2
|
111.2
|
114.2
|
Awst 2017
|
113.7
|
113.8
|
112.2
|
114.5
|
Medi 2017
|
115.4
|
115.6
|
113.8
|
115.7
|
Hydref 2017
|
116.8
|
117.1
|
115.2
|
116.6
|
Tachwedd 2017
|
119.7
|
120.1
|
118.0
|
119.6
|
Rhagfyr 2017
|
117.1
|
117.6
|
115.4
|
117.0
|
Ionawr 2018
|
117.7
|
118.3
|
116.0
|
117.8
|
Chwefror 2018
|
116.0
|
116.3
|
114.0
|
115.5
|
Mawrth 2018
|
115.4
|
115.8
|
113.4
|
114.5
|
Ebrill 2018
|
112.3
|
112.8
|
110.6
|
110.9
|
Mai 2018
|
111.0
|
111.7
|
109.6
|
109.2
|
Mehefin 2018
|
111.2
|
112.2
|
109.9
|
109.5
|
Gorffennaf 2018
|
117.0
|
117.9
|
115.4
|
115.0
|
Awst 2018
|
117.9
|
118.8
|
116.6
|
116.0
|
Medi 2018
|
119.5
|
120.3
|
118.1
|
117.0
|
Hydref 2018
|
117.9
|
118.9
|
116.4
|
115.7
|
Tachwedd 2018
|
119.2
|
120.2
|
117.6
|
116.8
|
Rhagfyr 2018
|
120.4
|
121.5
|
118.6
|
118.3
|
Ionawr 2019
|
117.9
|
119.0
|
116.0
|
115.7
|
Chwefror 2019
|
118.2
|
119.0
|
115.9
|
115.9
|
Mawrth 2019
|
118.6
|
119.4
|
116.2
|
116.0
|
Ebrill 2019
|
119.6
|
120.5
|
117.6
|
116.8
|
Mai 2019
|
120.0
|
121.1
|
118.4
|
117.1
|
Mehefin 2019
|
118.7
|
119.7
|
117.4
|
115.7
|
Gorffennaf 2019
|
123.5
|
124.5
|
122.0
|
120.5
|
Awst 2019
|
125.7
|
126.6
|
124.2
|
121.9
|
Medi 2019
|
125.9
|
126.6
|
124.4
|
122.1
|
Hydref 2019
|
122.8
|
123.6
|
121.2
|
118.8
|
Tachwedd 2019
|
121.0
|
122.2
|
119.4
|
117.4
|
Rhagfyr 2019
|
119.5
|
121.0
|
117.9
|
115.8
|
Ionawr 2020
|
120.2
|
121.7
|
118.7
|
116.3
|
Chwefror 2020
|
119.8
|
121.1
|
118.3
|
115.6
|
Mawrth 2020
|
123.7
|
124.9
|
121.9
|
119.0
|
Ebrill 2020
|
122.5
|
123.7
|
120.8
|
117.0
|
Mai 2020
|
120.7
|
122.2
|
119.1
|
115.6
|
Mehefin 2020
|
119.3
|
121.0
|
118.0
|
114.3
|
Gorffennaf 2020
|
123.1
|
124.8
|
121.7
|
118.5
|
Awst 2020
|
127.5
|
129.0
|
126.2
|
121.8
|
Medi 2020
|
131.0
|
132.3
|
129.3
|
124.0
|
Hydref 2020
|
130.9
|
132.2
|
129.3
|
123.1
|
Tachwedd 2020
|
131.9
|
133.0
|
130.4
|
124.3
|
Rhagfyr 2020
|
128.1
|
129.0
|
126.8
|
120.8
|
Ionawr 2021
|
127.7
|
128.6
|
126.6
|
121.8
|
Chwefror 2021
|
127.2
|
128.2
|
126.6
|
122.6
|
Mawrth 2021
|
129.2
|
130.3
|
129.0
|
126.3
|
Ebrill 2021
|
128.7
|
129.9
|
128.6
|
125.7
|
Mai 2021
|
128.0
|
129.2
|
127.8
|
124.7
|
Mehefin 2021
|
130.6
|
131.6
|
130.8
|
127.3
|
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
|
Mehefin 2005
|
344527.0
|
Gorffennaf 2005
|
346514.0
|
Awst 2005
|
345118.0
|
Medi 2005
|
346306.0
|
Hydref 2005
|
339384.0
|
Tachwedd 2005
|
345080.0
|
Rhagfyr 2005
|
349633.0
|
Ionawr 2006
|
355498.0
|
Chwefror 2006
|
356641.0
|
Mawrth 2006
|
355072.0
|
Ebrill 2006
|
364895.0
|
Mai 2006
|
366043.0
|
Mehefin 2006
|
370183.0
|
Gorffennaf 2006
|
375843.0
|
Awst 2006
|
376495.0
|
Medi 2006
|
375741.0
|
Hydref 2006
|
369667.0
|
Tachwedd 2006
|
371979.0
|
Rhagfyr 2006
|
373697.0
|
Ionawr 2007
|
367187.0
|
Chwefror 2007
|
371992.0
|
Mawrth 2007
|
376031.0
|
Ebrill 2007
|
377333.0
|
Mai 2007
|
376642.0
|
Mehefin 2007
|
375494.0
|
Gorffennaf 2007
|
386255.0
|
Awst 2007
|
382977.0
|
Medi 2007
|
389314.0
|
Hydref 2007
|
385065.0
|
Tachwedd 2007
|
393519.0
|
Rhagfyr 2007
|
389821.0
|
Ionawr 2008
|
395344.0
|
Chwefror 2008
|
392341.0
|
Mawrth 2008
|
391291.0
|
Ebrill 2008
|
388181.0
|
Mai 2008
|
393540.0
|
Mehefin 2008
|
386349.0
|
Gorffennaf 2008
|
391368.0
|
Awst 2008
|
374653.0
|
Medi 2008
|
375551.0
|
Hydref 2008
|
350491.0
|
Tachwedd 2008
|
345101.0
|
Rhagfyr 2008
|
341096.0
|
Ionawr 2009
|
345034.0
|
Chwefror 2009
|
354147.0
|
Mawrth 2009
|
343446.0
|
Ebrill 2009
|
337183.0
|
Mai 2009
|
328467.0
|
Mehefin 2009
|
329069.0
|
Gorffennaf 2009
|
339740.0
|
Awst 2009
|
347636.0
|
Medi 2009
|
354373.0
|
Hydref 2009
|
357939.0
|
Tachwedd 2009
|
353307.0
|
Rhagfyr 2009
|
356418.0
|
Ionawr 2010
|
350940.0
|
Chwefror 2010
|
359985.0
|
Mawrth 2010
|
358581.0
|
Ebrill 2010
|
363043.0
|
Mai 2010
|
356596.0
|
Mehefin 2010
|
364321.0
|
Gorffennaf 2010
|
368858.0
|
Awst 2010
|
368684.0
|
Medi 2010
|
365703.0
|
Hydref 2010
|
367581.0
|
Tachwedd 2010
|
369940.0
|
Rhagfyr 2010
|
382618.0
|
Ionawr 2011
|
375506.0
|
Chwefror 2011
|
385575.0
|
Mawrth 2011
|
373714.0
|
Ebrill 2011
|
378808.0
|
Mai 2011
|
376701.0
|
Mehefin 2011
|
374234.0
|
Gorffennaf 2011
|
369994.0
|
Awst 2011
|
363067.0
|
Medi 2011
|
373645.0
|
Hydref 2011
|
377125.0
|
Tachwedd 2011
|
379538.0
|
Rhagfyr 2011
|
367734.0
|
Ionawr 2012
|
365937.0
|
Chwefror 2012
|
370901.0
|
Mawrth 2012
|
378905.0
|
Ebrill 2012
|
384859.0
|
Mai 2012
|
381999.0
|
Mehefin 2012
|
386723.0
|
Gorffennaf 2012
|
380152.0
|
Awst 2012
|
377157.0
|
Medi 2012
|
378639.0
|
Hydref 2012
|
387388.0
|
Tachwedd 2012
|
390209.0
|
Rhagfyr 2012
|
385000.0
|
Ionawr 2013
|
382875.0
|
Chwefror 2013
|
379815.0
|
Mawrth 2013
|
370822.0
|
Ebrill 2013
|
374684.0
|
Mai 2013
|
380920.0
|
Mehefin 2013
|
397505.0
|
Gorffennaf 2013
|
390773.0
|
Awst 2013
|
398802.0
|
Medi 2013
|
402316.0
|
Hydref 2013
|
412011.0
|
Tachwedd 2013
|
412178.0
|
Rhagfyr 2013
|
410789.0
|
Ionawr 2014
|
407011.0
|
Chwefror 2014
|
404167.0
|
Mawrth 2014
|
407271.0
|
Ebrill 2014
|
415944.0
|
Mai 2014
|
420233.0
|
Mehefin 2014
|
421060.0
|
Gorffennaf 2014
|
424791.0
|
Awst 2014
|
426678.0
|
Medi 2014
|
436189.0
|
Hydref 2014
|
435829.0
|
Tachwedd 2014
|
433143.0
|
Rhagfyr 2014
|
429201.0
|
Ionawr 2015
|
429030.0
|
Chwefror 2015
|
436783.0
|
Mawrth 2015
|
433561.0
|
Ebrill 2015
|
430772.0
|
Mai 2015
|
427235.0
|
Mehefin 2015
|
426205.0
|
Gorffennaf 2015
|
426207.0
|
Awst 2015
|
432771.0
|
Medi 2015
|
442488.0
|
Hydref 2015
|
454373.0
|
Tachwedd 2015
|
468498.0
|
Rhagfyr 2015
|
476721.0
|
Ionawr 2016
|
485676.0
|
Chwefror 2016
|
472057.0
|
Mawrth 2016
|
465569.0
|
Ebrill 2016
|
456915.0
|
Mai 2016
|
456901.0
|
Mehefin 2016
|
460015.0
|
Gorffennaf 2016
|
457416.0
|
Awst 2016
|
469847.0
|
Medi 2016
|
479224.0
|
Hydref 2016
|
484453.0
|
Tachwedd 2016
|
484300.0
|
Rhagfyr 2016
|
482528.0
|
Ionawr 2017
|
495114.0
|
Chwefror 2017
|
503618.0
|
Mawrth 2017
|
502205.0
|
Ebrill 2017
|
492338.0
|
Mai 2017
|
480897.0
|
Mehefin 2017
|
490849.0
|
Gorffennaf 2017
|
496312.0
|
Awst 2017
|
497471.0
|
Medi 2017
|
507211.0
|
Hydref 2017
|
514423.0
|
Tachwedd 2017
|
527730.0
|
Rhagfyr 2017
|
514919.0
|
Ionawr 2018
|
520966.0
|
Chwefror 2018
|
523099.0
|
Mawrth 2018
|
524994.0
|
Ebrill 2018
|
511055.0
|
Mai 2018
|
498095.0
|
Mehefin 2018
|
496976.0
|
Gorffennaf 2018
|
520867.0
|
Awst 2018
|
526397.0
|
Medi 2018
|
533504.0
|
Hydref 2018
|
529160.0
|
Tachwedd 2018
|
531585.0
|
Rhagfyr 2018
|
537287.0
|
Ionawr 2019
|
525204.0
|
Chwefror 2019
|
534994.0
|
Mawrth 2019
|
540382.0
|
Ebrill 2019
|
546684.0
|
Mai 2019
|
543585.0
|
Mehefin 2019
|
533098.0
|
Gorffennaf 2019
|
556450.0
|
Awst 2019
|
564389.0
|
Medi 2019
|
568429.0
|
Hydref 2019
|
551105.0
|
Tachwedd 2019
|
540485.0
|
Rhagfyr 2019
|
529336.0
|
Ionawr 2020
|
537055.0
|
Chwefror 2020
|
539100.0
|
Mawrth 2020
|
562828.0
|
Ebrill 2020
|
560419.0
|
Mai 2020
|
559439.0
|
Mehefin 2020
|
547449.0
|
Gorffennaf 2020
|
557885.0
|
Awst 2020
|
571842.0
|
Medi 2020
|
588983.0
|
Hydref 2020
|
584449.0
|
Tachwedd 2020
|
582696.0
|
Rhagfyr 2020
|
561634.0
|
Ionawr 2021
|
553469.0
|
Chwefror 2021
|
550564.0
|
Mawrth 2021
|
559419.0
|
Ebrill 2021
|
565329.0
|
Mai 2021
|
563850.0
|
Mehefin 2021
|
567790.0
|
Dyddiad
|
Adeilad newydd
|
Mehefin 2005
|
6.4
|
Gorffennaf 2005
|
9.5
|
Awst 2005
|
6.4
|
Medi 2005
|
9.8
|
Hydref 2005
|
3.6
|
Tachwedd 2005
|
8.6
|
Rhagfyr 2005
|
8.8
|
Ionawr 2006
|
10.6
|
Chwefror 2006
|
7.6
|
Mawrth 2006
|
4.1
|
Ebrill 2006
|
5.6
|
Mai 2006
|
5.8
|
Mehefin 2006
|
7.4
|
Gorffennaf 2006
|
8.5
|
Awst 2006
|
9.1
|
Medi 2006
|
8.5
|
Hydref 2006
|
8.9
|
Tachwedd 2006
|
7.8
|
Rhagfyr 2006
|
6.9
|
Ionawr 2007
|
3.3
|
Chwefror 2007
|
4.3
|
Mawrth 2007
|
5.9
|
Ebrill 2007
|
3.4
|
Mai 2007
|
2.9
|
Mehefin 2007
|
1.4
|
Gorffennaf 2007
|
2.8
|
Awst 2007
|
1.7
|
Medi 2007
|
3.6
|
Hydref 2007
|
4.2
|
Tachwedd 2007
|
5.8
|
Rhagfyr 2007
|
4.3
|
Ionawr 2008
|
7.7
|
Chwefror 2008
|
5.5
|
Mawrth 2008
|
4.1
|
Ebrill 2008
|
2.9
|
Mai 2008
|
4.5
|
Mehefin 2008
|
2.9
|
Gorffennaf 2008
|
1.3
|
Awst 2008
|
-2.2
|
Medi 2008
|
-3.5
|
Hydref 2008
|
-9.0
|
Tachwedd 2008
|
-12.3
|
Rhagfyr 2008
|
-12.5
|
Ionawr 2009
|
-12.7
|
Chwefror 2009
|
-9.7
|
Mawrth 2009
|
-12.2
|
Ebrill 2009
|
-13.1
|
Mai 2009
|
-16.5
|
Mehefin 2009
|
-14.8
|
Gorffennaf 2009
|
-13.2
|
Awst 2009
|
-7.2
|
Medi 2009
|
-5.6
|
Hydref 2009
|
2.1
|
Tachwedd 2009
|
2.4
|
Rhagfyr 2009
|
4.5
|
Ionawr 2010
|
1.7
|
Chwefror 2010
|
1.6
|
Mawrth 2010
|
4.4
|
Ebrill 2010
|
7.7
|
Mai 2010
|
8.6
|
Mehefin 2010
|
10.7
|
Gorffennaf 2010
|
8.6
|
Awst 2010
|
6.0
|
Medi 2010
|
3.2
|
Hydref 2010
|
2.7
|
Tachwedd 2010
|
4.7
|
Rhagfyr 2010
|
7.4
|
Ionawr 2011
|
7.0
|
Chwefror 2011
|
7.1
|
Mawrth 2011
|
4.2
|
Ebrill 2011
|
4.3
|
Mai 2011
|
5.6
|
Mehefin 2011
|
2.7
|
Gorffennaf 2011
|
0.3
|
Awst 2011
|
-1.5
|
Medi 2011
|
2.2
|
Hydref 2011
|
2.6
|
Tachwedd 2011
|
2.6
|
Rhagfyr 2011
|
-3.9
|
Ionawr 2012
|
-2.6
|
Chwefror 2012
|
-3.8
|
Mawrth 2012
|
1.4
|
Ebrill 2012
|
1.6
|
Mai 2012
|
1.4
|
Mehefin 2012
|
3.3
|
Gorffennaf 2012
|
2.8
|
Awst 2012
|
3.9
|
Medi 2012
|
1.3
|
Hydref 2012
|
2.7
|
Tachwedd 2012
|
2.8
|
Rhagfyr 2012
|
4.7
|
Ionawr 2013
|
4.6
|
Chwefror 2013
|
2.4
|
Mawrth 2013
|
-2.1
|
Ebrill 2013
|
-2.6
|
Mai 2013
|
-0.3
|
Mehefin 2013
|
2.8
|
Gorffennaf 2013
|
2.8
|
Awst 2013
|
5.7
|
Medi 2013
|
6.2
|
Hydref 2013
|
6.4
|
Tachwedd 2013
|
5.6
|
Rhagfyr 2013
|
6.7
|
Ionawr 2014
|
6.3
|
Chwefror 2014
|
6.4
|
Mawrth 2014
|
9.8
|
Ebrill 2014
|
11.0
|
Mai 2014
|
10.3
|
Mehefin 2014
|
5.9
|
Gorffennaf 2014
|
8.7
|
Awst 2014
|
7.0
|
Medi 2014
|
8.4
|
Hydref 2014
|
5.8
|
Tachwedd 2014
|
5.1
|
Rhagfyr 2014
|
4.5
|
Ionawr 2015
|
5.4
|
Chwefror 2015
|
8.1
|
Mawrth 2015
|
6.5
|
Ebrill 2015
|
3.6
|
Mai 2015
|
1.7
|
Mehefin 2015
|
1.2
|
Gorffennaf 2015
|
0.3
|
Awst 2015
|
1.4
|
Medi 2015
|
1.4
|
Hydref 2015
|
4.2
|
Tachwedd 2015
|
8.2
|
Rhagfyr 2015
|
11.1
|
Ionawr 2016
|
13.2
|
Chwefror 2016
|
8.1
|
Mawrth 2016
|
7.4
|
Ebrill 2016
|
6.1
|
Mai 2016
|
6.9
|
Mehefin 2016
|
7.9
|
Gorffennaf 2016
|
7.3
|
Awst 2016
|
8.6
|
Medi 2016
|
8.3
|
Hydref 2016
|
6.6
|
Tachwedd 2016
|
3.4
|
Rhagfyr 2016
|
1.2
|
Ionawr 2017
|
1.9
|
Chwefror 2017
|
6.7
|
Mawrth 2017
|
7.9
|
Ebrill 2017
|
6.2
|
Mai 2017
|
4.3
|
Mehefin 2017
|
6.7
|
Gorffennaf 2017
|
8.5
|
Awst 2017
|
5.9
|
Medi 2017
|
5.8
|
Hydref 2017
|
6.2
|
Tachwedd 2017
|
9.0
|
Rhagfyr 2017
|
6.7
|
Ionawr 2018
|
5.2
|
Chwefror 2018
|
3.9
|
Mawrth 2018
|
4.5
|
Ebrill 2018
|
3.8
|
Mai 2018
|
3.6
|
Mehefin 2018
|
1.2
|
Gorffennaf 2018
|
5.0
|
Awst 2018
|
5.8
|
Medi 2018
|
5.2
|
Hydref 2018
|
2.9
|
Tachwedd 2018
|
0.7
|
Rhagfyr 2018
|
4.3
|
Ionawr 2019
|
0.8
|
Chwefror 2019
|
2.3
|
Mawrth 2019
|
2.9
|
Ebrill 2019
|
7.0
|
Mai 2019
|
9.1
|
Mehefin 2019
|
7.3
|
Gorffennaf 2019
|
6.8
|
Awst 2019
|
7.2
|
Medi 2019
|
6.6
|
Hydref 2019
|
4.2
|
Tachwedd 2019
|
1.7
|
Rhagfyr 2019
|
-1.5
|
Ionawr 2020
|
2.3
|
Chwefror 2020
|
0.8
|
Mawrth 2020
|
4.2
|
Ebrill 2020
|
2.5
|
Mai 2020
|
2.9
|
Mehefin 2020
|
2.7
|
Gorffennaf 2020
|
0.3
|
Awst 2020
|
1.3
|
Medi 2020
|
3.6
|
Hydref 2020
|
6.0
|
Tachwedd 2020
|
7.8
|
Rhagfyr 2020
|
6.1
|
Ionawr 2021
|
3.1
|
Chwefror 2021
|
2.1
|
Mawrth 2021
|
-0.6
|
Ebrill 2021
|
0.9
|
Mai 2021
|
0.8
|
Mehefin 2021
|
3.7
|
Dyddiad
|
Adeilad newydd
|
Mehefin 2005
|
-0.4
|
Gorffennaf 2005
|
0.6
|
Awst 2005
|
-0.4
|
Medi 2005
|
0.3
|
Hydref 2005
|
-2.0
|
Tachwedd 2005
|
1.7
|
Rhagfyr 2005
|
1.3
|
Ionawr 2006
|
1.7
|
Chwefror 2006
|
0.3
|
Mawrth 2006
|
-0.4
|
Ebrill 2006
|
2.8
|
Mai 2006
|
0.3
|
Mehefin 2006
|
1.1
|
Gorffennaf 2006
|
1.5
|
Awst 2006
|
0.2
|
Medi 2006
|
-0.2
|
Hydref 2006
|
-1.6
|
Tachwedd 2006
|
0.6
|
Rhagfyr 2006
|
0.5
|
Ionawr 2007
|
-1.7
|
Chwefror 2007
|
1.3
|
Mawrth 2007
|
1.1
|
Ebrill 2007
|
0.4
|
Mai 2007
|
-0.2
|
Mehefin 2007
|
-0.3
|
Gorffennaf 2007
|
2.9
|
Awst 2007
|
-0.8
|
Medi 2007
|
1.6
|
Hydref 2007
|
-1.1
|
Tachwedd 2007
|
2.2
|
Rhagfyr 2007
|
-0.9
|
Ionawr 2008
|
1.4
|
Chwefror 2008
|
-0.8
|
Mawrth 2008
|
-0.3
|
Ebrill 2008
|
-0.8
|
Mai 2008
|
1.4
|
Mehefin 2008
|
-1.8
|
Gorffennaf 2008
|
1.3
|
Awst 2008
|
-4.3
|
Medi 2008
|
0.2
|
Hydref 2008
|
-6.7
|
Tachwedd 2008
|
-1.5
|
Rhagfyr 2008
|
-1.2
|
Ionawr 2009
|
1.2
|
Chwefror 2009
|
2.6
|
Mawrth 2009
|
-3.0
|
Ebrill 2009
|
-1.8
|
Mai 2009
|
-2.6
|
Mehefin 2009
|
0.2
|
Gorffennaf 2009
|
3.2
|
Awst 2009
|
2.3
|
Medi 2009
|
1.9
|
Hydref 2009
|
1.0
|
Tachwedd 2009
|
-1.3
|
Rhagfyr 2009
|
0.9
|
Ionawr 2010
|
-1.5
|
Chwefror 2010
|
2.6
|
Mawrth 2010
|
-0.4
|
Ebrill 2010
|
1.2
|
Mai 2010
|
-1.8
|
Mehefin 2010
|
2.2
|
Gorffennaf 2010
|
1.2
|
Awst 2010
|
-0.1
|
Medi 2010
|
-0.8
|
Hydref 2010
|
0.5
|
Tachwedd 2010
|
0.6
|
Rhagfyr 2010
|
3.4
|
Ionawr 2011
|
-1.9
|
Chwefror 2011
|
2.7
|
Mawrth 2011
|
-3.1
|
Ebrill 2011
|
1.4
|
Mai 2011
|
-0.6
|
Mehefin 2011
|
-0.6
|
Gorffennaf 2011
|
-1.1
|
Awst 2011
|
-1.9
|
Medi 2011
|
2.9
|
Hydref 2011
|
0.9
|
Tachwedd 2011
|
0.6
|
Rhagfyr 2011
|
-3.1
|
Ionawr 2012
|
-0.5
|
Chwefror 2012
|
1.4
|
Mawrth 2012
|
2.2
|
Ebrill 2012
|
1.6
|
Mai 2012
|
-0.7
|
Mehefin 2012
|
1.2
|
Gorffennaf 2012
|
-1.7
|
Awst 2012
|
-0.8
|
Medi 2012
|
0.4
|
Hydref 2012
|
2.3
|
Tachwedd 2012
|
0.7
|
Rhagfyr 2012
|
-1.3
|
Ionawr 2013
|
-0.6
|
Chwefror 2013
|
-0.8
|
Mawrth 2013
|
-2.4
|
Ebrill 2013
|
1.0
|
Mai 2013
|
1.7
|
Mehefin 2013
|
4.4
|
Gorffennaf 2013
|
-1.7
|
Awst 2013
|
2.0
|
Medi 2013
|
0.9
|
Hydref 2013
|
2.4
|
Tachwedd 2013
|
0.0
|
Rhagfyr 2013
|
-0.3
|
Ionawr 2014
|
-0.9
|
Chwefror 2014
|
-0.7
|
Mawrth 2014
|
0.8
|
Ebrill 2014
|
2.1
|
Mai 2014
|
1.0
|
Mehefin 2014
|
0.2
|
Gorffennaf 2014
|
0.9
|
Awst 2014
|
0.4
|
Medi 2014
|
2.2
|
Hydref 2014
|
-0.1
|
Tachwedd 2014
|
-0.6
|
Rhagfyr 2014
|
-0.9
|
Ionawr 2015
|
-0.0
|
Chwefror 2015
|
1.8
|
Mawrth 2015
|
-0.7
|
Ebrill 2015
|
-0.6
|
Mai 2015
|
-0.8
|
Mehefin 2015
|
-0.2
|
Gorffennaf 2015
|
0.0
|
Awst 2015
|
1.5
|
Medi 2015
|
2.2
|
Hydref 2015
|
2.7
|
Tachwedd 2015
|
3.1
|
Rhagfyr 2015
|
1.8
|
Ionawr 2016
|
1.9
|
Chwefror 2016
|
-2.8
|
Mawrth 2016
|
-1.4
|
Ebrill 2016
|
-1.9
|
Mai 2016
|
0.0
|
Mehefin 2016
|
0.7
|
Gorffennaf 2016
|
-0.6
|
Awst 2016
|
2.7
|
Medi 2016
|
2.0
|
Hydref 2016
|
1.1
|
Tachwedd 2016
|
-0.0
|
Rhagfyr 2016
|
-0.4
|
Ionawr 2017
|
2.6
|
Chwefror 2017
|
1.7
|
Mawrth 2017
|
-0.3
|
Ebrill 2017
|
-2.0
|
Mai 2017
|
-2.3
|
Mehefin 2017
|
2.1
|
Gorffennaf 2017
|
1.1
|
Awst 2017
|
0.2
|
Medi 2017
|
2.0
|
Hydref 2017
|
1.4
|
Tachwedd 2017
|
2.6
|
Rhagfyr 2017
|
-2.4
|
Ionawr 2018
|
1.2
|
Chwefror 2018
|
0.4
|
Mawrth 2018
|
0.4
|
Ebrill 2018
|
-2.7
|
Mai 2018
|
-2.5
|
Mehefin 2018
|
-0.2
|
Gorffennaf 2018
|
4.8
|
Awst 2018
|
1.1
|
Medi 2018
|
1.4
|
Hydref 2018
|
-0.8
|
Tachwedd 2018
|
0.5
|
Rhagfyr 2018
|
1.1
|
Ionawr 2019
|
-2.2
|
Chwefror 2019
|
1.9
|
Mawrth 2019
|
1.0
|
Ebrill 2019
|
1.2
|
Mai 2019
|
-0.6
|
Mehefin 2019
|
-1.9
|
Gorffennaf 2019
|
4.4
|
Awst 2019
|
1.4
|
Medi 2019
|
0.7
|
Hydref 2019
|
-3.0
|
Tachwedd 2019
|
-1.9
|
Rhagfyr 2019
|
-2.1
|
Ionawr 2020
|
1.5
|
Chwefror 2020
|
0.4
|
Mawrth 2020
|
4.4
|
Ebrill 2020
|
-0.4
|
Mai 2020
|
-0.2
|
Mehefin 2020
|
-2.1
|
Gorffennaf 2020
|
1.9
|
Awst 2020
|
2.5
|
Medi 2020
|
3.0
|
Hydref 2020
|
-0.8
|
Tachwedd 2020
|
-0.3
|
Rhagfyr 2020
|
-3.6
|
Ionawr 2021
|
-1.5
|
Chwefror 2021
|
-0.5
|
Mawrth 2021
|
1.6
|
Ebrill 2021
|
1.1
|
Mai 2021
|
-0.3
|
Mehefin 2021
|
0.7
|
Dyddiad
|
Adeilad newydd
|
Mehefin 2005
|
80.3
|
Gorffennaf 2005
|
80.8
|
Awst 2005
|
80.4
|
Medi 2005
|
80.7
|
Hydref 2005
|
79.1
|
Tachwedd 2005
|
80.4
|
Rhagfyr 2005
|
81.5
|
Ionawr 2006
|
82.9
|
Chwefror 2006
|
83.1
|
Mawrth 2006
|
82.8
|
Ebrill 2006
|
85.0
|
Mai 2006
|
85.3
|
Mehefin 2006
|
86.3
|
Gorffennaf 2006
|
87.6
|
Awst 2006
|
87.8
|
Medi 2006
|
87.6
|
Hydref 2006
|
86.2
|
Tachwedd 2006
|
86.7
|
Rhagfyr 2006
|
87.1
|
Ionawr 2007
|
85.6
|
Chwefror 2007
|
86.7
|
Mawrth 2007
|
87.6
|
Ebrill 2007
|
88.0
|
Mai 2007
|
87.8
|
Mehefin 2007
|
87.5
|
Gorffennaf 2007
|
90.0
|
Awst 2007
|
89.3
|
Medi 2007
|
90.7
|
Hydref 2007
|
89.8
|
Tachwedd 2007
|
91.7
|
Rhagfyr 2007
|
90.9
|
Ionawr 2008
|
92.2
|
Chwefror 2008
|
91.4
|
Mawrth 2008
|
91.2
|
Ebrill 2008
|
90.5
|
Mai 2008
|
91.7
|
Mehefin 2008
|
90.0
|
Gorffennaf 2008
|
91.2
|
Awst 2008
|
87.3
|
Medi 2008
|
87.5
|
Hydref 2008
|
81.7
|
Tachwedd 2008
|
80.4
|
Rhagfyr 2008
|
79.5
|
Ionawr 2009
|
80.4
|
Chwefror 2009
|
82.6
|
Mawrth 2009
|
80.0
|
Ebrill 2009
|
78.6
|
Mai 2009
|
76.6
|
Mehefin 2009
|
76.7
|
Gorffennaf 2009
|
79.2
|
Awst 2009
|
81.0
|
Medi 2009
|
82.6
|
Hydref 2009
|
83.4
|
Tachwedd 2009
|
82.4
|
Rhagfyr 2009
|
83.1
|
Ionawr 2010
|
81.8
|
Chwefror 2010
|
83.9
|
Mawrth 2010
|
83.6
|
Ebrill 2010
|
84.6
|
Mai 2010
|
83.1
|
Mehefin 2010
|
84.9
|
Gorffennaf 2010
|
86.0
|
Awst 2010
|
85.9
|
Medi 2010
|
85.2
|
Hydref 2010
|
85.7
|
Tachwedd 2010
|
86.2
|
Rhagfyr 2010
|
89.2
|
Ionawr 2011
|
87.5
|
Chwefror 2011
|
89.9
|
Mawrth 2011
|
87.1
|
Ebrill 2011
|
88.3
|
Mai 2011
|
87.8
|
Mehefin 2011
|
87.2
|
Gorffennaf 2011
|
86.2
|
Awst 2011
|
84.6
|
Medi 2011
|
87.1
|
Hydref 2011
|
87.9
|
Tachwedd 2011
|
88.5
|
Rhagfyr 2011
|
85.7
|
Ionawr 2012
|
85.3
|
Chwefror 2012
|
86.4
|
Mawrth 2012
|
88.3
|
Ebrill 2012
|
89.7
|
Mai 2012
|
89.0
|
Mehefin 2012
|
90.1
|
Gorffennaf 2012
|
88.6
|
Awst 2012
|
87.9
|
Medi 2012
|
88.2
|
Hydref 2012
|
90.3
|
Tachwedd 2012
|
91.0
|
Rhagfyr 2012
|
89.7
|
Ionawr 2013
|
89.2
|
Chwefror 2013
|
88.5
|
Mawrth 2013
|
86.4
|
Ebrill 2013
|
87.3
|
Mai 2013
|
88.8
|
Mehefin 2013
|
92.6
|
Gorffennaf 2013
|
91.1
|
Awst 2013
|
93.0
|
Medi 2013
|
93.8
|
Hydref 2013
|
96.0
|
Tachwedd 2013
|
96.1
|
Rhagfyr 2013
|
95.8
|
Ionawr 2014
|
94.9
|
Chwefror 2014
|
94.2
|
Mawrth 2014
|
94.9
|
Ebrill 2014
|
97.0
|
Mai 2014
|
98.0
|
Mehefin 2014
|
98.1
|
Gorffennaf 2014
|
99.0
|
Awst 2014
|
99.4
|
Medi 2014
|
101.7
|
Hydref 2014
|
101.6
|
Tachwedd 2014
|
101.0
|
Rhagfyr 2014
|
100.0
|
Ionawr 2015
|
100.0
|
Chwefror 2015
|
101.8
|
Mawrth 2015
|
101.1
|
Ebrill 2015
|
100.4
|
Mai 2015
|
99.6
|
Mehefin 2015
|
99.3
|
Gorffennaf 2015
|
99.3
|
Awst 2015
|
100.9
|
Medi 2015
|
103.1
|
Hydref 2015
|
105.9
|
Tachwedd 2015
|
109.2
|
Rhagfyr 2015
|
111.1
|
Ionawr 2016
|
113.2
|
Chwefror 2016
|
110.0
|
Mawrth 2016
|
108.5
|
Ebrill 2016
|
106.5
|
Mai 2016
|
106.5
|
Mehefin 2016
|
107.2
|
Gorffennaf 2016
|
106.6
|
Awst 2016
|
109.5
|
Medi 2016
|
111.7
|
Hydref 2016
|
112.9
|
Tachwedd 2016
|
112.9
|
Rhagfyr 2016
|
112.5
|
Ionawr 2017
|
115.4
|
Chwefror 2017
|
117.4
|
Mawrth 2017
|
117.1
|
Ebrill 2017
|
114.8
|
Mai 2017
|
112.1
|
Mehefin 2017
|
114.4
|
Gorffennaf 2017
|
115.7
|
Awst 2017
|
116.0
|
Medi 2017
|
118.2
|
Hydref 2017
|
119.9
|
Tachwedd 2017
|
123.0
|
Rhagfyr 2017
|
120.0
|
Ionawr 2018
|
121.4
|
Chwefror 2018
|
121.9
|
Mawrth 2018
|
122.4
|
Ebrill 2018
|
119.1
|
Mai 2018
|
116.1
|
Mehefin 2018
|
115.8
|
Gorffennaf 2018
|
121.4
|
Awst 2018
|
122.7
|
Medi 2018
|
124.4
|
Hydref 2018
|
123.3
|
Tachwedd 2018
|
123.9
|
Rhagfyr 2018
|
125.2
|
Ionawr 2019
|
122.4
|
Chwefror 2019
|
124.7
|
Mawrth 2019
|
126.0
|
Ebrill 2019
|
127.4
|
Mai 2019
|
126.7
|
Mehefin 2019
|
124.3
|
Gorffennaf 2019
|
129.7
|
Awst 2019
|
131.6
|
Medi 2019
|
132.5
|
Hydref 2019
|
128.4
|
Tachwedd 2019
|
126.0
|
Rhagfyr 2019
|
123.4
|
Ionawr 2020
|
125.2
|
Chwefror 2020
|
125.7
|
Mawrth 2020
|
131.2
|
Ebrill 2020
|
130.6
|
Mai 2020
|
130.4
|
Mehefin 2020
|
127.6
|
Gorffennaf 2020
|
130.0
|
Awst 2020
|
133.3
|
Medi 2020
|
137.3
|
Hydref 2020
|
136.2
|
Tachwedd 2020
|
135.8
|
Rhagfyr 2020
|
130.9
|
Ionawr 2021
|
129.0
|
Chwefror 2021
|
128.3
|
Mawrth 2021
|
130.4
|
Ebrill 2021
|
131.8
|
Mai 2021
|
131.4
|
Mehefin 2021
|
132.3
|