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 ar wahân
|
Tai pâr
|
Fflatiau a fflatiau deulawr
|
Chwefror 2006
|
239115.0
|
448642.0
|
289915.0
|
214773.0
|
Mawrth 2006
|
241380.0
|
454096.0
|
292056.0
|
216507.0
|
Ebrill 2006
|
245474.0
|
455431.0
|
296200.0
|
220453.0
|
Mai 2006
|
247591.0
|
460366.0
|
297797.0
|
223018.0
|
Mehefin 2006
|
251417.0
|
465913.0
|
301279.0
|
226295.0
|
Gorffennaf 2006
|
253883.0
|
473171.0
|
306203.0
|
226972.0
|
Awst 2006
|
256704.0
|
478540.0
|
308896.0
|
230115.0
|
Medi 2006
|
257541.0
|
483177.0
|
310130.0
|
231214.0
|
Hydref 2006
|
259115.0
|
483203.0
|
311206.0
|
233036.0
|
Tachwedd 2006
|
258814.0
|
484883.0
|
312651.0
|
231582.0
|
Rhagfyr 2006
|
264494.0
|
491261.0
|
316458.0
|
238180.0
|
Ionawr 2007
|
267658.0
|
496475.0
|
319628.0
|
240937.0
|
Chwefror 2007
|
270780.0
|
501729.0
|
322708.0
|
245120.0
|
Mawrth 2007
|
273479.0
|
506544.0
|
325473.0
|
246442.0
|
Ebrill 2007
|
278805.0
|
512600.0
|
330825.0
|
251019.0
|
Mai 2007
|
282726.0
|
515304.0
|
334101.0
|
256149.0
|
Mehefin 2007
|
285958.0
|
524980.0
|
337493.0
|
258918.0
|
Gorffennaf 2007
|
295694.0
|
547759.0
|
350983.0
|
266890.0
|
Awst 2007
|
297653.0
|
546248.0
|
350162.0
|
269035.0
|
Medi 2007
|
298414.0
|
552891.0
|
351709.0
|
270506.0
|
Hydref 2007
|
298559.0
|
555873.0
|
351538.0
|
270658.0
|
Tachwedd 2007
|
297648.0
|
560486.0
|
354894.0
|
268479.0
|
Rhagfyr 2007
|
297994.0
|
551709.0
|
352333.0
|
270329.0
|
Ionawr 2008
|
298596.0
|
562436.0
|
354015.0
|
269578.0
|
Chwefror 2008
|
295700.0
|
552961.0
|
351217.0
|
267322.0
|
Mawrth 2008
|
293605.0
|
547952.0
|
349568.0
|
264226.0
|
Ebrill 2008
|
294346.0
|
557690.0
|
349515.0
|
265191.0
|
Mai 2008
|
295163.0
|
550050.0
|
350758.0
|
266306.0
|
Mehefin 2008
|
290100.0
|
542550.0
|
344894.0
|
260848.0
|
Gorffennaf 2008
|
290261.0
|
546197.0
|
343508.0
|
262734.0
|
Awst 2008
|
281721.0
|
532326.0
|
335791.0
|
253968.0
|
Medi 2008
|
276487.0
|
524235.0
|
326819.0
|
250460.0
|
Hydref 2008
|
266999.0
|
506702.0
|
316158.0
|
242805.0
|
Tachwedd 2008
|
258647.0
|
493046.0
|
308780.0
|
233135.0
|
Rhagfyr 2008
|
253881.0
|
480437.0
|
303686.0
|
228422.0
|
Ionawr 2009
|
253093.0
|
484980.0
|
300817.0
|
229353.0
|
Chwefror 2009
|
249847.0
|
465160.0
|
296380.0
|
226949.0
|
Mawrth 2009
|
247264.0
|
460766.0
|
291834.0
|
225466.0
|
Ebrill 2009
|
245351.0
|
456683.0
|
291883.0
|
222092.0
|
Mai 2009
|
249991.0
|
462317.0
|
295985.0
|
227052.0
|
Mehefin 2009
|
253596.0
|
468537.0
|
299623.0
|
229061.0
|
Gorffennaf 2009
|
259793.0
|
484437.0
|
310207.0
|
233071.0
|
Awst 2009
|
262076.0
|
491850.0
|
314236.0
|
234400.0
|
Medi 2009
|
267501.0
|
497220.0
|
316791.0
|
241515.0
|
Hydref 2009
|
268780.0
|
504815.0
|
321628.0
|
240658.0
|
Tachwedd 2009
|
266837.0
|
501064.0
|
318077.0
|
238347.0
|
Rhagfyr 2009
|
270118.0
|
502617.0
|
323927.0
|
241063.0
|
Ionawr 2010
|
279724.0
|
525410.0
|
335145.0
|
249180.0
|
Chwefror 2010
|
278753.0
|
524431.0
|
335551.0
|
247719.0
|
Mawrth 2010
|
280472.0
|
532768.0
|
335940.0
|
250903.0
|
Ebrill 2010
|
281981.0
|
530526.0
|
337788.0
|
251899.0
|
Mai 2010
|
281762.0
|
532230.0
|
337877.0
|
250835.0
|
Mehefin 2010
|
284541.0
|
536235.0
|
340019.0
|
253666.0
|
Gorffennaf 2010
|
292772.0
|
560177.0
|
351466.0
|
259349.0
|
Awst 2010
|
290646.0
|
552684.0
|
352306.0
|
257356.0
|
Medi 2010
|
290093.0
|
559284.0
|
350133.0
|
256612.0
|
Hydref 2010
|
286131.0
|
548402.0
|
345578.0
|
253754.0
|
Tachwedd 2010
|
282290.0
|
545732.0
|
343402.0
|
250196.0
|
Rhagfyr 2010
|
285353.0
|
545247.0
|
344640.0
|
253763.0
|
Ionawr 2011
|
287983.0
|
561353.0
|
347089.0
|
255214.0
|
Chwefror 2011
|
285227.0
|
556285.0
|
343860.0
|
253953.0
|
Mawrth 2011
|
287092.0
|
559907.0
|
342214.0
|
257165.0
|
Ebrill 2011
|
293993.0
|
556813.0
|
346657.0
|
264752.0
|
Mai 2011
|
284722.0
|
539789.0
|
342357.0
|
254026.0
|
Mehefin 2011
|
285906.0
|
534579.0
|
340812.0
|
256336.0
|
Gorffennaf 2011
|
295843.0
|
555115.0
|
350495.0
|
265623.0
|
Awst 2011
|
294903.0
|
558789.0
|
354046.0
|
261746.0
|
Medi 2011
|
295358.0
|
566622.0
|
353417.0
|
262610.0
|
Hydref 2011
|
292267.0
|
565503.0
|
354002.0
|
259320.0
|
Tachwedd 2011
|
291036.0
|
559120.0
|
348955.0
|
260317.0
|
Rhagfyr 2011
|
292284.0
|
553602.0
|
350948.0
|
261000.0
|
Ionawr 2012
|
294360.0
|
554780.0
|
352985.0
|
262346.0
|
Chwefror 2012
|
292381.0
|
569459.0
|
354995.0
|
257937.0
|
Mawrth 2012
|
290379.0
|
544127.0
|
345599.0
|
259216.0
|
Ebrill 2012
|
299065.0
|
561806.0
|
354724.0
|
267993.0
|
Mai 2012
|
304081.0
|
570424.0
|
361779.0
|
271470.0
|
Mehefin 2012
|
306823.0
|
567821.0
|
361738.0
|
274239.0
|
Gorffennaf 2012
|
308962.0
|
580113.0
|
366704.0
|
275099.0
|
Awst 2012
|
310043.0
|
582142.0
|
368878.0
|
275527.0
|
Medi 2012
|
308469.0
|
579776.0
|
365664.0
|
274948.0
|
Hydref 2012
|
310281.0
|
580841.0
|
367792.0
|
277248.0
|
Tachwedd 2012
|
308540.0
|
579766.0
|
366472.0
|
275027.0
|
Rhagfyr 2012
|
313744.0
|
584430.0
|
368743.0
|
280600.0
|
Ionawr 2013
|
311364.0
|
585417.0
|
371472.0
|
277251.0
|
Chwefror 2013
|
313550.0
|
584924.0
|
369428.0
|
280689.0
|
Mawrth 2013
|
312289.0
|
587252.0
|
369862.0
|
278831.0
|
Ebrill 2013
|
320921.0
|
592752.0
|
374400.0
|
288624.0
|
Mai 2013
|
322324.0
|
600796.0
|
379979.0
|
288559.0
|
Mehefin 2013
|
324518.0
|
600375.0
|
380448.0
|
290694.0
|
Gorffennaf 2013
|
332988.0
|
612056.0
|
388303.0
|
298764.0
|
Awst 2013
|
335743.0
|
621017.0
|
394860.0
|
299890.0
|
Medi 2013
|
340494.0
|
627915.0
|
394236.0
|
306464.0
|
Hydref 2013
|
340045.0
|
629328.0
|
398386.0
|
305736.0
|
Tachwedd 2013
|
343749.0
|
631279.0
|
401464.0
|
309270.0
|
Rhagfyr 2013
|
352028.0
|
632546.0
|
405661.0
|
319009.0
|
Ionawr 2014
|
355830.0
|
651986.0
|
413770.0
|
320787.0
|
Chwefror 2014
|
357876.0
|
657774.0
|
415632.0
|
323086.0
|
Mawrth 2014
|
361400.0
|
656427.0
|
417649.0
|
326778.0
|
Ebrill 2014
|
375337.0
|
688122.0
|
435644.0
|
337738.0
|
Mai 2014
|
382705.0
|
692487.0
|
441186.0
|
345723.0
|
Mehefin 2014
|
387182.0
|
699099.0
|
446329.0
|
349362.0
|
Gorffennaf 2014
|
398737.0
|
728491.0
|
465103.0
|
357492.0
|
Awst 2014
|
404754.0
|
739313.0
|
471552.0
|
362768.0
|
Medi 2014
|
403670.0
|
738828.0
|
468585.0
|
362757.0
|
Hydref 2014
|
402300.0
|
741040.0
|
470849.0
|
360746.0
|
Tachwedd 2014
|
400803.0
|
743115.0
|
472027.0
|
358450.0
|
Rhagfyr 2014
|
402898.0
|
739606.0
|
469349.0
|
362322.0
|
Ionawr 2015
|
402847.0
|
743471.0
|
471904.0
|
361840.0
|
Chwefror 2015
|
404773.0
|
748417.0
|
473702.0
|
363574.0
|
Mawrth 2015
|
404706.0
|
746670.0
|
474072.0
|
363615.0
|
Ebrill 2015
|
410445.0
|
759614.0
|
480438.0
|
367469.0
|
Mai 2015
|
415817.0
|
758190.0
|
485444.0
|
374213.0
|
Mehefin 2015
|
419474.0
|
772089.0
|
493081.0
|
373769.0
|
Gorffennaf 2015
|
431644.0
|
787783.0
|
506181.0
|
385416.0
|
Awst 2015
|
436152.0
|
805864.0
|
514997.0
|
387978.0
|
Medi 2015
|
439729.0
|
820565.0
|
517030.0
|
392127.0
|
Hydref 2015
|
440484.0
|
824799.0
|
525228.0
|
389400.0
|
Tachwedd 2015
|
445485.0
|
828661.0
|
528318.0
|
395612.0
|
Rhagfyr 2015
|
450053.0
|
844884.0
|
536465.0
|
398893.0
|
Ionawr 2016
|
457466.0
|
846956.0
|
546758.0
|
405793.0
|
Chwefror 2016
|
457759.0
|
863896.0
|
550400.0
|
403745.0
|
Mawrth 2016
|
464647.0
|
873391.0
|
549954.0
|
412842.0
|
Ebrill 2016
|
461068.0
|
859832.0
|
551600.0
|
407094.0
|
Mai 2016
|
467485.0
|
864839.0
|
557920.0
|
414351.0
|
Mehefin 2016
|
468120.0
|
885121.0
|
560281.0
|
413275.0
|
Gorffennaf 2016
|
475530.0
|
893103.0
|
572688.0
|
418347.0
|
Awst 2016
|
471957.0
|
889075.0
|
568552.0
|
415648.0
|
Medi 2016
|
471767.0
|
883706.0
|
565376.0
|
416967.0
|
Hydref 2016
|
471008.0
|
883336.0
|
565977.0
|
417532.0
|
Tachwedd 2016
|
470854.0
|
886553.0
|
562093.0
|
418660.0
|
Rhagfyr 2016
|
472374.0
|
887005.0
|
562272.0
|
419937.0
|
Ionawr 2017
|
475619.0
|
893279.0
|
568911.0
|
421834.0
|
Chwefror 2017
|
476717.0
|
887959.0
|
563242.0
|
427256.0
|
Mawrth 2017
|
475442.0
|
893859.0
|
566834.0
|
422917.0
|
Ebrill 2017
|
479790.0
|
899133.0
|
567701.0
|
428541.0
|
Mai 2017
|
480902.0
|
890430.0
|
571569.0
|
430111.0
|
Mehefin 2017
|
480152.0
|
890539.0
|
569116.0
|
428001.0
|
Gorffennaf 2017
|
488527.0
|
903023.0
|
582307.0
|
434837.0
|
Awst 2017
|
487085.0
|
904655.0
|
579880.0
|
432209.0
|
Medi 2017
|
483833.0
|
913220.0
|
578519.0
|
428892.0
|
Hydref 2017
|
481762.0
|
908782.0
|
580410.0
|
426315.0
|
Tachwedd 2017
|
476290.0
|
892900.0
|
573421.0
|
421807.0
|
Rhagfyr 2017
|
476848.0
|
899100.0
|
573194.0
|
421917.0
|
Ionawr 2018
|
479772.0
|
895602.0
|
576870.0
|
425766.0
|
Chwefror 2018
|
477860.0
|
898057.0
|
574508.0
|
423537.0
|
Mawrth 2018
|
472357.0
|
890041.0
|
572169.0
|
416546.0
|
Ebrill 2018
|
477253.0
|
898928.0
|
579191.0
|
420315.0
|
Mai 2018
|
478485.0
|
903088.0
|
581868.0
|
420076.0
|
Mehefin 2018
|
479931.0
|
909153.0
|
587607.0
|
421188.0
|
Gorffennaf 2018
|
484724.0
|
929011.0
|
591665.0
|
424322.0
|
Awst 2018
|
479550.0
|
912509.0
|
583664.0
|
420693.0
|
Medi 2018
|
476545.0
|
912657.0
|
583686.0
|
416752.0
|
Hydref 2018
|
480057.0
|
919012.0
|
586432.0
|
420614.0
|
Tachwedd 2018
|
474347.0
|
913641.0
|
580831.0
|
414526.0
|
Rhagfyr 2018
|
473252.0
|
899415.0
|
579876.0
|
415052.0
|
Ionawr 2019
|
470067.0
|
909861.0
|
578054.0
|
410934.0
|
Chwefror 2019
|
466068.0
|
897130.0
|
571003.0
|
407751.0
|
Dyddiad
|
Pob math o eiddo
|
Tai ar wahân
|
Tai pâr
|
Fflatiau a fflatiau deulawr
|
Chwefror 2006
|
3.4
|
1.3
|
2.2
|
3.5
|
Mawrth 2006
|
4.4
|
3.2
|
3.5
|
4.3
|
Ebrill 2006
|
4.3
|
2.8
|
3.2
|
4.4
|
Mai 2006
|
5.0
|
2.8
|
3.3
|
5.5
|
Mehefin 2006
|
6.6
|
5.2
|
4.8
|
7.2
|
Gorffennaf 2006
|
6.7
|
5.3
|
5.2
|
6.6
|
Awst 2006
|
7.9
|
6.4
|
7.0
|
7.7
|
Medi 2006
|
8.7
|
7.0
|
6.8
|
9.5
|
Hydref 2006
|
10.6
|
9.1
|
8.7
|
11.2
|
Tachwedd 2006
|
9.4
|
8.9
|
8.5
|
9.4
|
Rhagfyr 2006
|
11.0
|
11.9
|
10.9
|
10.5
|
Ionawr 2007
|
11.6
|
9.4
|
9.6
|
12.3
|
Chwefror 2007
|
13.2
|
11.8
|
11.3
|
14.1
|
Mawrth 2007
|
13.3
|
11.6
|
11.4
|
13.8
|
Ebrill 2007
|
13.6
|
12.6
|
11.7
|
13.9
|
Mai 2007
|
14.2
|
11.9
|
12.2
|
14.9
|
Mehefin 2007
|
13.7
|
12.7
|
12.0
|
14.4
|
Gorffennaf 2007
|
16.5
|
15.8
|
14.6
|
17.6
|
Awst 2007
|
16.0
|
14.2
|
13.4
|
16.9
|
Medi 2007
|
15.9
|
14.4
|
13.4
|
17.0
|
Hydref 2007
|
15.2
|
15.0
|
13.0
|
16.1
|
Tachwedd 2007
|
15.0
|
15.6
|
13.5
|
15.9
|
Rhagfyr 2007
|
12.7
|
12.3
|
11.3
|
13.5
|
Ionawr 2008
|
11.6
|
13.3
|
10.8
|
11.9
|
Chwefror 2008
|
9.2
|
10.2
|
8.8
|
9.1
|
Mawrth 2008
|
7.4
|
8.2
|
7.4
|
7.2
|
Ebrill 2008
|
5.6
|
8.8
|
5.6
|
5.6
|
Mai 2008
|
4.4
|
6.7
|
5.0
|
4.0
|
Mehefin 2008
|
1.4
|
3.4
|
2.2
|
0.8
|
Gorffennaf 2008
|
-1.8
|
-0.3
|
-2.1
|
-1.6
|
Awst 2008
|
-5.4
|
-2.6
|
-4.1
|
-5.6
|
Medi 2008
|
-7.4
|
-5.2
|
-7.1
|
-7.4
|
Hydref 2008
|
-10.6
|
-8.8
|
-10.1
|
-10.3
|
Tachwedd 2008
|
-13.1
|
-12.0
|
-13.0
|
-13.2
|
Rhagfyr 2008
|
-14.8
|
-12.9
|
-13.8
|
-15.5
|
Ionawr 2009
|
-15.2
|
-13.8
|
-15.0
|
-14.9
|
Chwefror 2009
|
-15.5
|
-15.9
|
-15.6
|
-15.1
|
Mawrth 2009
|
-15.8
|
-15.9
|
-16.5
|
-14.7
|
Ebrill 2009
|
-16.6
|
-18.1
|
-16.5
|
-16.2
|
Mai 2009
|
-15.3
|
-16.0
|
-15.6
|
-14.7
|
Mehefin 2009
|
-12.6
|
-13.6
|
-13.1
|
-12.2
|
Gorffennaf 2009
|
-10.5
|
-11.3
|
-9.7
|
-11.3
|
Awst 2009
|
-7.0
|
-7.6
|
-6.4
|
-7.7
|
Medi 2009
|
-3.2
|
-5.2
|
-3.1
|
-3.6
|
Hydref 2009
|
0.7
|
-0.4
|
1.7
|
-0.9
|
Tachwedd 2009
|
3.2
|
1.6
|
3.0
|
2.2
|
Rhagfyr 2009
|
6.4
|
4.6
|
6.7
|
5.5
|
Ionawr 2010
|
10.5
|
8.3
|
11.4
|
8.6
|
Chwefror 2010
|
11.6
|
12.7
|
13.2
|
9.2
|
Mawrth 2010
|
13.4
|
15.6
|
15.1
|
11.3
|
Ebrill 2010
|
14.9
|
16.2
|
15.7
|
13.4
|
Mai 2010
|
12.7
|
15.1
|
14.2
|
10.5
|
Mehefin 2010
|
12.2
|
14.4
|
13.5
|
10.7
|
Gorffennaf 2010
|
12.7
|
15.6
|
13.3
|
11.3
|
Awst 2010
|
10.9
|
12.4
|
12.1
|
9.8
|
Medi 2010
|
8.4
|
12.5
|
10.5
|
6.2
|
Hydref 2010
|
6.5
|
8.6
|
7.4
|
5.4
|
Tachwedd 2010
|
5.8
|
8.9
|
8.0
|
5.0
|
Rhagfyr 2010
|
5.6
|
8.5
|
6.4
|
5.3
|
Ionawr 2011
|
3.0
|
6.8
|
3.6
|
2.4
|
Chwefror 2011
|
2.3
|
6.1
|
2.5
|
2.5
|
Mawrth 2011
|
2.4
|
5.1
|
1.9
|
2.5
|
Ebrill 2011
|
4.3
|
5.0
|
2.6
|
5.1
|
Mai 2011
|
1.0
|
1.4
|
1.3
|
1.3
|
Mehefin 2011
|
0.5
|
-0.3
|
0.2
|
1.0
|
Gorffennaf 2011
|
1.0
|
-0.9
|
-0.3
|
2.4
|
Awst 2011
|
1.5
|
1.1
|
0.5
|
1.7
|
Medi 2011
|
1.8
|
1.3
|
0.9
|
2.3
|
Hydref 2011
|
2.1
|
3.1
|
2.4
|
2.2
|
Tachwedd 2011
|
3.1
|
2.4
|
1.6
|
4.0
|
Rhagfyr 2011
|
2.4
|
1.5
|
1.8
|
2.8
|
Ionawr 2012
|
2.2
|
-1.2
|
1.7
|
2.8
|
Chwefror 2012
|
2.5
|
2.4
|
3.2
|
1.6
|
Mawrth 2012
|
1.1
|
-2.8
|
1.0
|
0.8
|
Ebrill 2012
|
1.7
|
0.9
|
2.3
|
1.2
|
Mai 2012
|
6.8
|
5.7
|
5.7
|
6.9
|
Mehefin 2012
|
7.3
|
6.2
|
6.1
|
7.0
|
Gorffennaf 2012
|
4.4
|
4.5
|
4.6
|
3.6
|
Awst 2012
|
5.1
|
4.2
|
4.2
|
5.3
|
Medi 2012
|
4.4
|
2.3
|
3.5
|
4.7
|
Hydref 2012
|
6.2
|
2.7
|
3.9
|
6.9
|
Tachwedd 2012
|
6.0
|
3.7
|
5.0
|
5.6
|
Rhagfyr 2012
|
7.3
|
5.6
|
5.1
|
7.5
|
Ionawr 2013
|
5.8
|
5.5
|
5.2
|
5.7
|
Chwefror 2013
|
7.2
|
2.7
|
4.1
|
8.8
|
Mawrth 2013
|
7.6
|
7.9
|
7.0
|
7.6
|
Ebrill 2013
|
7.3
|
5.5
|
5.6
|
7.7
|
Mai 2013
|
6.0
|
5.3
|
5.0
|
6.3
|
Mehefin 2013
|
5.8
|
5.7
|
5.2
|
6.0
|
Gorffennaf 2013
|
7.8
|
5.5
|
5.9
|
8.6
|
Awst 2013
|
8.3
|
6.7
|
7.0
|
8.8
|
Medi 2013
|
10.4
|
8.3
|
7.8
|
11.5
|
Hydref 2013
|
9.6
|
8.4
|
8.3
|
10.3
|
Tachwedd 2013
|
11.4
|
8.9
|
9.6
|
12.4
|
Rhagfyr 2013
|
12.2
|
8.2
|
10.0
|
13.7
|
Ionawr 2014
|
14.3
|
11.4
|
11.4
|
15.7
|
Chwefror 2014
|
14.1
|
12.4
|
12.5
|
15.1
|
Mawrth 2014
|
15.7
|
11.8
|
12.9
|
17.2
|
Ebrill 2014
|
17.0
|
16.1
|
16.4
|
17.0
|
Mai 2014
|
18.7
|
15.3
|
16.1
|
19.8
|
Mehefin 2014
|
19.3
|
16.4
|
17.3
|
20.2
|
Gorffennaf 2014
|
19.8
|
19.0
|
19.8
|
19.7
|
Awst 2014
|
20.6
|
19.0
|
19.4
|
21.0
|
Medi 2014
|
18.6
|
17.7
|
18.9
|
18.4
|
Hydref 2014
|
18.3
|
17.8
|
18.2
|
18.0
|
Tachwedd 2014
|
16.6
|
17.7
|
17.6
|
15.9
|
Rhagfyr 2014
|
14.4
|
16.9
|
15.7
|
13.6
|
Ionawr 2015
|
13.2
|
14.0
|
14.0
|
12.8
|
Chwefror 2015
|
13.1
|
13.8
|
14.0
|
12.5
|
Mawrth 2015
|
12.0
|
13.8
|
13.5
|
11.3
|
Ebrill 2015
|
9.4
|
10.4
|
10.3
|
8.8
|
Mai 2015
|
8.6
|
9.5
|
10.0
|
8.2
|
Mehefin 2015
|
8.3
|
10.4
|
10.5
|
7.0
|
Gorffennaf 2015
|
8.2
|
8.1
|
8.8
|
7.8
|
Awst 2015
|
7.8
|
9.0
|
9.2
|
7.0
|
Medi 2015
|
8.9
|
11.1
|
10.3
|
8.1
|
Hydref 2015
|
9.5
|
11.3
|
11.6
|
7.9
|
Tachwedd 2015
|
11.2
|
11.5
|
11.9
|
10.4
|
Rhagfyr 2015
|
11.7
|
14.2
|
14.3
|
10.1
|
Ionawr 2016
|
13.6
|
13.9
|
15.9
|
12.2
|
Chwefror 2016
|
13.1
|
15.4
|
16.2
|
11.0
|
Mawrth 2016
|
14.8
|
17.0
|
16.0
|
13.5
|
Ebrill 2016
|
12.3
|
13.2
|
14.8
|
10.8
|
Mai 2016
|
12.4
|
14.1
|
14.9
|
10.7
|
Mehefin 2016
|
11.6
|
14.6
|
13.6
|
10.6
|
Gorffennaf 2016
|
10.2
|
13.4
|
13.1
|
8.5
|
Awst 2016
|
8.2
|
10.3
|
10.4
|
7.1
|
Medi 2016
|
7.3
|
7.7
|
9.4
|
6.3
|
Hydref 2016
|
6.9
|
7.1
|
7.8
|
7.2
|
Tachwedd 2016
|
5.7
|
7.0
|
6.4
|
5.8
|
Rhagfyr 2016
|
5.0
|
5.0
|
4.8
|
5.3
|
Ionawr 2017
|
4.0
|
5.5
|
4.0
|
4.0
|
Chwefror 2017
|
4.1
|
2.8
|
2.3
|
5.8
|
Mawrth 2017
|
2.3
|
2.3
|
3.1
|
2.4
|
Ebrill 2017
|
4.1
|
4.6
|
2.9
|
5.3
|
Mai 2017
|
2.9
|
3.0
|
2.4
|
3.8
|
Mehefin 2017
|
2.6
|
0.6
|
1.6
|
3.6
|
Gorffennaf 2017
|
2.7
|
1.1
|
1.7
|
3.9
|
Awst 2017
|
3.2
|
1.8
|
2.0
|
4.0
|
Medi 2017
|
2.6
|
3.3
|
2.3
|
2.9
|
Hydref 2017
|
2.3
|
2.9
|
2.6
|
2.1
|
Tachwedd 2017
|
1.2
|
0.7
|
2.0
|
0.8
|
Rhagfyr 2017
|
1.0
|
1.4
|
1.9
|
0.5
|
Ionawr 2018
|
0.9
|
0.3
|
1.4
|
0.9
|
Chwefror 2018
|
0.2
|
1.1
|
2.0
|
-0.9
|
Mawrth 2018
|
-0.6
|
-0.4
|
0.9
|
-1.5
|
Ebrill 2018
|
-0.5
|
-0.0
|
2.0
|
-1.9
|
Mai 2018
|
-0.5
|
1.4
|
1.8
|
-2.3
|
Mehefin 2018
|
-0.1
|
2.1
|
3.2
|
-1.6
|
Gorffennaf 2018
|
-0.8
|
2.9
|
1.6
|
-2.4
|
Awst 2018
|
-1.6
|
0.9
|
0.6
|
-2.7
|
Medi 2018
|
-1.5
|
-0.1
|
0.9
|
-2.8
|
Hydref 2018
|
-0.4
|
1.1
|
1.0
|
-1.3
|
Tachwedd 2018
|
-0.4
|
2.3
|
1.3
|
-1.7
|
Rhagfyr 2018
|
-0.8
|
0.0
|
1.2
|
-1.6
|
Ionawr 2019
|
-2.0
|
1.6
|
0.2
|
-3.5
|
Chwefror 2019
|
-2.5
|
-0.1
|
-0.6
|
-3.7
|
Dyddiad
|
Pob math o eiddo
|
Tai ar wahân
|
Tai pâr
|
Fflatiau a fflatiau deulawr
|
Chwefror 2006
|
-0.3
|
-1.2
|
-0.6
|
0.1
|
Mawrth 2006
|
1.0
|
1.2
|
0.7
|
0.8
|
Ebrill 2006
|
1.7
|
0.3
|
1.4
|
1.8
|
Mai 2006
|
0.9
|
1.1
|
0.5
|
1.2
|
Mehefin 2006
|
1.6
|
1.2
|
1.2
|
1.5
|
Gorffennaf 2006
|
1.0
|
1.6
|
1.6
|
0.3
|
Awst 2006
|
1.1
|
1.1
|
0.9
|
1.4
|
Medi 2006
|
0.3
|
1.0
|
0.4
|
0.5
|
Hydref 2006
|
0.6
|
0.0
|
0.4
|
0.8
|
Tachwedd 2006
|
-0.1
|
0.4
|
0.5
|
-0.6
|
Rhagfyr 2006
|
2.2
|
1.3
|
1.2
|
2.8
|
Ionawr 2007
|
1.2
|
1.1
|
1.0
|
1.2
|
Chwefror 2007
|
1.2
|
1.1
|
1.0
|
1.7
|
Mawrth 2007
|
1.0
|
1.0
|
0.9
|
0.5
|
Ebrill 2007
|
2.0
|
1.2
|
1.6
|
1.9
|
Mai 2007
|
1.4
|
0.5
|
1.0
|
2.0
|
Mehefin 2007
|
1.1
|
1.9
|
1.0
|
1.1
|
Gorffennaf 2007
|
3.4
|
4.3
|
4.0
|
3.1
|
Awst 2007
|
0.7
|
-0.3
|
-0.2
|
0.8
|
Medi 2007
|
0.3
|
1.2
|
0.4
|
0.6
|
Hydref 2007
|
0.1
|
0.5
|
-0.1
|
0.1
|
Tachwedd 2007
|
-0.3
|
0.8
|
1.0
|
-0.8
|
Rhagfyr 2007
|
0.1
|
-1.6
|
-0.7
|
0.7
|
Ionawr 2008
|
0.2
|
1.9
|
0.5
|
-0.3
|
Chwefror 2008
|
-1.0
|
-1.7
|
-0.8
|
-0.8
|
Mawrth 2008
|
-0.7
|
-0.9
|
-0.5
|
-1.2
|
Ebrill 2008
|
0.2
|
1.8
|
-0.0
|
0.4
|
Mai 2008
|
0.3
|
-1.4
|
0.4
|
0.4
|
Mehefin 2008
|
-1.7
|
-1.4
|
-1.7
|
-2.0
|
Gorffennaf 2008
|
0.1
|
0.7
|
-0.4
|
0.7
|
Awst 2008
|
-2.9
|
-2.5
|
-2.2
|
-3.3
|
Medi 2008
|
-1.9
|
-1.5
|
-2.7
|
-1.4
|
Hydref 2008
|
-3.4
|
-3.3
|
-3.3
|
-3.1
|
Tachwedd 2008
|
-3.1
|
-2.7
|
-2.3
|
-4.0
|
Rhagfyr 2008
|
-1.8
|
-2.6
|
-1.6
|
-2.0
|
Ionawr 2009
|
-0.3
|
1.0
|
-0.9
|
0.4
|
Chwefror 2009
|
-1.3
|
-4.1
|
-1.5
|
-1.0
|
Mawrth 2009
|
-1.0
|
-0.9
|
-1.5
|
-0.6
|
Ebrill 2009
|
-0.8
|
-0.9
|
0.0
|
-1.5
|
Mai 2009
|
1.9
|
1.2
|
1.4
|
2.2
|
Mehefin 2009
|
1.4
|
1.4
|
1.2
|
0.9
|
Gorffennaf 2009
|
2.4
|
3.4
|
3.5
|
1.8
|
Awst 2009
|
0.9
|
1.5
|
1.3
|
0.6
|
Medi 2009
|
2.1
|
1.1
|
0.8
|
3.0
|
Hydref 2009
|
0.5
|
1.5
|
1.5
|
-0.4
|
Tachwedd 2009
|
-0.7
|
-0.7
|
-1.1
|
-1.0
|
Rhagfyr 2009
|
1.2
|
0.3
|
1.8
|
1.1
|
Ionawr 2010
|
3.6
|
4.5
|
3.5
|
3.4
|
Chwefror 2010
|
-0.4
|
-0.2
|
0.1
|
-0.6
|
Mawrth 2010
|
0.6
|
1.6
|
0.1
|
1.3
|
Ebrill 2010
|
0.5
|
-0.4
|
0.6
|
0.4
|
Mai 2010
|
-0.1
|
0.3
|
0.0
|
-0.4
|
Mehefin 2010
|
1.0
|
0.8
|
0.6
|
1.1
|
Gorffennaf 2010
|
2.9
|
4.5
|
3.4
|
2.2
|
Awst 2010
|
-0.7
|
-1.3
|
0.2
|
-0.8
|
Medi 2010
|
-0.2
|
1.2
|
-0.6
|
-0.3
|
Hydref 2010
|
-1.4
|
-2.0
|
-1.3
|
-1.1
|
Tachwedd 2010
|
-1.3
|
-0.5
|
-0.6
|
-1.4
|
Rhagfyr 2010
|
1.1
|
-0.1
|
0.4
|
1.4
|
Ionawr 2011
|
0.9
|
3.0
|
0.7
|
0.6
|
Chwefror 2011
|
-1.0
|
-0.9
|
-0.9
|
-0.5
|
Mawrth 2011
|
0.6
|
0.6
|
-0.5
|
1.3
|
Ebrill 2011
|
2.4
|
-0.6
|
1.3
|
3.0
|
Mai 2011
|
-3.2
|
-3.1
|
-1.2
|
-4.0
|
Mehefin 2011
|
0.4
|
-1.0
|
-0.4
|
0.9
|
Gorffennaf 2011
|
3.5
|
3.8
|
2.8
|
3.6
|
Awst 2011
|
-0.3
|
0.7
|
1.0
|
-1.5
|
Medi 2011
|
0.2
|
1.4
|
-0.2
|
0.3
|
Hydref 2011
|
-1.0
|
-0.2
|
0.2
|
-1.2
|
Tachwedd 2011
|
-0.4
|
-1.1
|
-1.4
|
0.4
|
Rhagfyr 2011
|
0.4
|
-1.0
|
0.6
|
0.3
|
Ionawr 2012
|
0.7
|
0.2
|
0.6
|
0.5
|
Chwefror 2012
|
-0.7
|
2.6
|
0.6
|
-1.7
|
Mawrth 2012
|
-0.7
|
-4.4
|
-2.6
|
0.5
|
Ebrill 2012
|
3.0
|
3.2
|
2.6
|
3.4
|
Mai 2012
|
1.7
|
1.5
|
2.0
|
1.3
|
Mehefin 2012
|
0.9
|
-0.5
|
-0.0
|
1.0
|
Gorffennaf 2012
|
0.7
|
2.2
|
1.4
|
0.3
|
Awst 2012
|
0.4
|
0.4
|
0.6
|
0.2
|
Medi 2012
|
-0.5
|
-0.4
|
-0.9
|
-0.2
|
Hydref 2012
|
0.6
|
0.2
|
0.6
|
0.8
|
Tachwedd 2012
|
-0.6
|
-0.2
|
-0.4
|
-0.8
|
Rhagfyr 2012
|
1.7
|
0.8
|
0.6
|
2.0
|
Ionawr 2013
|
-0.8
|
0.2
|
0.7
|
-1.2
|
Chwefror 2013
|
0.7
|
-0.1
|
-0.6
|
1.2
|
Mawrth 2013
|
-0.4
|
0.4
|
0.1
|
-0.7
|
Ebrill 2013
|
2.8
|
0.9
|
1.2
|
3.5
|
Mai 2013
|
0.4
|
1.4
|
1.5
|
-0.0
|
Mehefin 2013
|
0.7
|
-0.1
|
0.1
|
0.7
|
Gorffennaf 2013
|
2.6
|
2.0
|
2.1
|
2.8
|
Awst 2013
|
0.8
|
1.5
|
1.7
|
0.4
|
Medi 2013
|
1.4
|
1.1
|
-0.2
|
2.2
|
Hydref 2013
|
-0.1
|
0.2
|
1.0
|
-0.2
|
Tachwedd 2013
|
1.1
|
0.3
|
0.8
|
1.2
|
Rhagfyr 2013
|
2.4
|
0.2
|
1.0
|
3.2
|
Ionawr 2014
|
1.1
|
3.1
|
2.0
|
0.6
|
Chwefror 2014
|
0.6
|
0.9
|
0.4
|
0.7
|
Mawrth 2014
|
1.0
|
-0.2
|
0.5
|
1.1
|
Ebrill 2014
|
3.9
|
4.8
|
4.3
|
3.4
|
Mai 2014
|
2.0
|
0.6
|
1.3
|
2.4
|
Mehefin 2014
|
1.2
|
1.0
|
1.2
|
1.0
|
Gorffennaf 2014
|
3.0
|
4.2
|
4.2
|
2.3
|
Awst 2014
|
1.5
|
1.5
|
1.4
|
1.5
|
Medi 2014
|
-0.3
|
-0.1
|
-0.6
|
0.0
|
Hydref 2014
|
-0.3
|
0.3
|
0.5
|
-0.6
|
Tachwedd 2014
|
-0.4
|
0.3
|
0.2
|
-0.6
|
Rhagfyr 2014
|
0.5
|
-0.5
|
-0.6
|
1.1
|
Ionawr 2015
|
-0.0
|
0.5
|
0.5
|
-0.1
|
Chwefror 2015
|
0.5
|
0.7
|
0.4
|
0.5
|
Mawrth 2015
|
-0.0
|
-0.2
|
0.1
|
0.0
|
Ebrill 2015
|
1.4
|
1.7
|
1.3
|
1.1
|
Mai 2015
|
1.3
|
-0.2
|
1.0
|
1.8
|
Mehefin 2015
|
0.9
|
1.8
|
1.6
|
-0.1
|
Gorffennaf 2015
|
2.9
|
2.0
|
2.7
|
3.1
|
Awst 2015
|
1.0
|
2.3
|
1.7
|
0.7
|
Medi 2015
|
0.8
|
1.8
|
0.4
|
1.1
|
Hydref 2015
|
0.2
|
0.5
|
1.6
|
-0.7
|
Tachwedd 2015
|
1.1
|
0.5
|
0.6
|
1.6
|
Rhagfyr 2015
|
1.0
|
2.0
|
1.5
|
0.8
|
Ionawr 2016
|
1.6
|
0.2
|
1.9
|
1.7
|
Chwefror 2016
|
0.1
|
2.0
|
0.7
|
-0.5
|
Mawrth 2016
|
1.5
|
1.1
|
-0.1
|
2.2
|
Ebrill 2016
|
-0.8
|
-1.6
|
0.3
|
-1.4
|
Mai 2016
|
1.4
|
0.6
|
1.2
|
1.8
|
Mehefin 2016
|
0.1
|
2.4
|
0.4
|
-0.3
|
Gorffennaf 2016
|
1.6
|
0.9
|
2.2
|
1.2
|
Awst 2016
|
-0.8
|
-0.4
|
-0.7
|
-0.6
|
Medi 2016
|
-0.0
|
-0.6
|
-0.6
|
0.3
|
Hydref 2016
|
-0.2
|
-0.0
|
0.1
|
0.1
|
Tachwedd 2016
|
-0.0
|
0.4
|
-0.7
|
0.3
|
Rhagfyr 2016
|
0.3
|
0.1
|
0.0
|
0.3
|
Ionawr 2017
|
0.7
|
0.7
|
1.2
|
0.4
|
Chwefror 2017
|
0.2
|
-0.6
|
-1.0
|
1.3
|
Mawrth 2017
|
-0.3
|
0.7
|
0.6
|
-1.0
|
Ebrill 2017
|
0.9
|
0.6
|
0.2
|
1.3
|
Mai 2017
|
0.2
|
-1.0
|
0.7
|
0.4
|
Mehefin 2017
|
-0.2
|
0.0
|
-0.4
|
-0.5
|
Gorffennaf 2017
|
1.7
|
1.4
|
2.3
|
1.6
|
Awst 2017
|
-0.3
|
0.2
|
-0.4
|
-0.6
|
Medi 2017
|
-0.7
|
1.0
|
-0.2
|
-0.8
|
Hydref 2017
|
-0.4
|
-0.5
|
0.3
|
-0.6
|
Tachwedd 2017
|
-1.1
|
-1.8
|
-1.2
|
-1.1
|
Rhagfyr 2017
|
0.1
|
0.7
|
-0.0
|
0.0
|
Ionawr 2018
|
0.6
|
-0.4
|
0.6
|
0.9
|
Chwefror 2018
|
-0.4
|
0.3
|
-0.4
|
-0.5
|
Mawrth 2018
|
-1.2
|
-0.9
|
-0.4
|
-1.6
|
Ebrill 2018
|
1.0
|
1.0
|
1.2
|
0.9
|
Mai 2018
|
0.3
|
0.5
|
0.5
|
-0.1
|
Mehefin 2018
|
0.3
|
0.7
|
1.0
|
0.3
|
Gorffennaf 2018
|
1.0
|
2.2
|
0.7
|
0.7
|
Awst 2018
|
-1.1
|
-1.8
|
-1.4
|
-0.9
|
Medi 2018
|
-0.6
|
0.0
|
0.0
|
-0.9
|
Hydref 2018
|
0.7
|
0.7
|
0.5
|
0.9
|
Tachwedd 2018
|
-1.2
|
-0.6
|
-1.0
|
-1.4
|
Rhagfyr 2018
|
-0.2
|
-1.6
|
-0.2
|
0.1
|
Ionawr 2019
|
-0.7
|
1.2
|
-0.3
|
-1.0
|
Chwefror 2019
|
-0.8
|
-1.4
|
-1.2
|
-0.8
|
Dyddiad
|
Pob math o eiddo
|
Tai ar wahân
|
Tai pâr
|
Fflatiau a fflatiau deulawr
|
Chwefror 2006
|
59.4
|
60.3
|
61.4
|
59.4
|
Mawrth 2006
|
59.9
|
61.1
|
61.9
|
59.8
|
Ebrill 2006
|
60.9
|
61.3
|
62.8
|
60.9
|
Mai 2006
|
61.5
|
61.9
|
63.1
|
61.6
|
Mehefin 2006
|
62.4
|
62.7
|
63.8
|
62.5
|
Gorffennaf 2006
|
63.0
|
63.6
|
64.9
|
62.7
|
Awst 2006
|
63.7
|
64.4
|
65.5
|
63.6
|
Medi 2006
|
63.9
|
65.0
|
65.7
|
63.9
|
Hydref 2006
|
64.3
|
65.0
|
66.0
|
64.4
|
Tachwedd 2006
|
64.2
|
65.2
|
66.2
|
64.0
|
Rhagfyr 2006
|
65.7
|
66.1
|
67.1
|
65.8
|
Ionawr 2007
|
66.4
|
66.8
|
67.7
|
66.6
|
Chwefror 2007
|
67.2
|
67.5
|
68.4
|
67.7
|
Mawrth 2007
|
67.9
|
68.1
|
69.0
|
68.1
|
Ebrill 2007
|
69.2
|
69.0
|
70.1
|
69.4
|
Mai 2007
|
70.2
|
69.3
|
70.8
|
70.8
|
Mehefin 2007
|
71.0
|
70.6
|
71.5
|
71.6
|
Gorffennaf 2007
|
73.4
|
73.7
|
74.4
|
73.8
|
Awst 2007
|
73.9
|
73.5
|
74.2
|
74.4
|
Medi 2007
|
74.1
|
74.4
|
74.5
|
74.8
|
Hydref 2007
|
74.1
|
74.8
|
74.5
|
74.8
|
Tachwedd 2007
|
73.9
|
75.4
|
75.2
|
74.2
|
Rhagfyr 2007
|
74.0
|
74.2
|
74.7
|
74.7
|
Ionawr 2008
|
74.1
|
75.6
|
75.0
|
74.5
|
Chwefror 2008
|
73.4
|
74.4
|
74.4
|
73.9
|
Mawrth 2008
|
72.9
|
73.7
|
74.1
|
73.0
|
Ebrill 2008
|
73.1
|
75.0
|
74.1
|
73.3
|
Mai 2008
|
73.3
|
74.0
|
74.3
|
73.6
|
Mehefin 2008
|
72.0
|
73.0
|
73.1
|
72.1
|
Gorffennaf 2008
|
72.0
|
73.5
|
72.8
|
72.6
|
Awst 2008
|
69.9
|
71.6
|
71.2
|
70.2
|
Medi 2008
|
68.6
|
70.5
|
69.3
|
69.2
|
Hydref 2008
|
66.3
|
68.2
|
67.0
|
67.1
|
Tachwedd 2008
|
64.2
|
66.3
|
65.4
|
64.4
|
Rhagfyr 2008
|
63.0
|
64.6
|
64.4
|
63.1
|
Ionawr 2009
|
62.8
|
65.2
|
63.8
|
63.4
|
Chwefror 2009
|
62.0
|
62.6
|
62.8
|
62.7
|
Mawrth 2009
|
61.4
|
62.0
|
61.8
|
62.3
|
Ebrill 2009
|
60.9
|
61.4
|
61.8
|
61.4
|
Mai 2009
|
62.1
|
62.2
|
62.7
|
62.8
|
Mehefin 2009
|
63.0
|
63.0
|
63.5
|
63.3
|
Gorffennaf 2009
|
64.5
|
65.2
|
65.7
|
64.4
|
Awst 2009
|
65.1
|
66.2
|
66.6
|
64.8
|
Medi 2009
|
66.4
|
66.9
|
67.1
|
66.8
|
Hydref 2009
|
66.7
|
67.9
|
68.2
|
66.5
|
Tachwedd 2009
|
66.2
|
67.4
|
67.4
|
65.9
|
Rhagfyr 2009
|
67.0
|
67.6
|
68.6
|
66.6
|
Ionawr 2010
|
69.4
|
70.7
|
71.0
|
68.9
|
Chwefror 2010
|
69.2
|
70.5
|
71.1
|
68.5
|
Mawrth 2010
|
69.6
|
71.7
|
71.2
|
69.3
|
Ebrill 2010
|
70.0
|
71.4
|
71.6
|
69.6
|
Mai 2010
|
69.9
|
71.6
|
71.6
|
69.3
|
Mehefin 2010
|
70.6
|
72.1
|
72.0
|
70.1
|
Gorffennaf 2010
|
72.7
|
75.4
|
74.5
|
71.7
|
Awst 2010
|
72.2
|
74.3
|
74.7
|
71.1
|
Medi 2010
|
72.0
|
75.2
|
74.2
|
70.9
|
Hydref 2010
|
71.0
|
73.8
|
73.2
|
70.1
|
Tachwedd 2010
|
70.1
|
73.4
|
72.8
|
69.2
|
Rhagfyr 2010
|
70.8
|
73.3
|
73.0
|
70.1
|
Ionawr 2011
|
71.5
|
75.5
|
73.6
|
70.5
|
Chwefror 2011
|
70.8
|
74.8
|
72.9
|
70.2
|
Mawrth 2011
|
71.3
|
75.3
|
72.5
|
71.1
|
Ebrill 2011
|
73.0
|
74.9
|
73.5
|
73.2
|
Mai 2011
|
70.7
|
72.6
|
72.6
|
70.2
|
Mehefin 2011
|
71.0
|
71.9
|
72.2
|
70.8
|
Gorffennaf 2011
|
73.4
|
74.7
|
74.3
|
73.4
|
Awst 2011
|
73.2
|
75.2
|
75.0
|
72.3
|
Medi 2011
|
73.3
|
76.2
|
74.9
|
72.6
|
Hydref 2011
|
72.6
|
76.1
|
75.0
|
71.7
|
Tachwedd 2011
|
72.2
|
75.2
|
74.0
|
71.9
|
Rhagfyr 2011
|
72.6
|
74.5
|
74.4
|
72.1
|
Ionawr 2012
|
73.1
|
74.6
|
74.8
|
72.5
|
Chwefror 2012
|
72.6
|
76.6
|
75.2
|
71.3
|
Mawrth 2012
|
72.1
|
73.2
|
73.2
|
71.6
|
Ebrill 2012
|
74.2
|
75.6
|
75.2
|
74.1
|
Mai 2012
|
75.5
|
76.7
|
76.7
|
75.0
|
Mehefin 2012
|
76.2
|
76.4
|
76.6
|
75.8
|
Gorffennaf 2012
|
76.7
|
78.0
|
77.7
|
76.0
|
Awst 2012
|
77.0
|
78.3
|
78.2
|
76.2
|
Medi 2012
|
76.6
|
78.0
|
77.5
|
76.0
|
Hydref 2012
|
77.0
|
78.1
|
77.9
|
76.6
|
Tachwedd 2012
|
76.6
|
78.0
|
77.7
|
76.0
|
Rhagfyr 2012
|
77.9
|
78.6
|
78.1
|
77.6
|
Ionawr 2013
|
77.3
|
78.7
|
78.7
|
76.6
|
Chwefror 2013
|
77.8
|
78.7
|
78.3
|
77.6
|
Mawrth 2013
|
77.5
|
79.0
|
78.4
|
77.1
|
Ebrill 2013
|
79.7
|
79.7
|
79.3
|
79.8
|
Mai 2013
|
80.0
|
80.8
|
80.5
|
79.8
|
Mehefin 2013
|
80.6
|
80.8
|
80.6
|
80.3
|
Gorffennaf 2013
|
82.7
|
82.3
|
82.3
|
82.6
|
Awst 2013
|
83.3
|
83.5
|
83.7
|
82.9
|
Medi 2013
|
84.5
|
84.5
|
83.5
|
84.7
|
Hydref 2013
|
84.4
|
84.6
|
84.4
|
84.5
|
Tachwedd 2013
|
85.3
|
84.9
|
85.1
|
85.5
|
Rhagfyr 2013
|
87.4
|
85.1
|
86.0
|
88.2
|
Ionawr 2014
|
88.3
|
87.7
|
87.7
|
88.6
|
Chwefror 2014
|
88.8
|
88.5
|
88.1
|
89.3
|
Mawrth 2014
|
89.7
|
88.3
|
88.5
|
90.3
|
Ebrill 2014
|
93.2
|
92.6
|
92.3
|
93.3
|
Mai 2014
|
95.0
|
93.1
|
93.5
|
95.6
|
Mehefin 2014
|
96.1
|
94.0
|
94.6
|
96.6
|
Gorffennaf 2014
|
99.0
|
98.0
|
98.6
|
98.8
|
Awst 2014
|
100.5
|
99.4
|
99.9
|
100.3
|
Medi 2014
|
100.2
|
99.4
|
99.3
|
100.2
|
Hydref 2014
|
99.9
|
99.7
|
99.8
|
99.7
|
Tachwedd 2014
|
99.5
|
100.0
|
100.0
|
99.1
|
Rhagfyr 2014
|
100.0
|
99.5
|
99.5
|
100.1
|
Ionawr 2015
|
100.0
|
100.0
|
100.0
|
100.0
|
Chwefror 2015
|
100.5
|
100.7
|
100.4
|
100.5
|
Mawrth 2015
|
100.5
|
100.4
|
100.5
|
100.5
|
Ebrill 2015
|
101.9
|
102.2
|
101.8
|
101.6
|
Mai 2015
|
103.2
|
102.0
|
102.9
|
103.4
|
Mehefin 2015
|
104.1
|
103.8
|
104.5
|
103.3
|
Gorffennaf 2015
|
107.2
|
106.0
|
107.3
|
106.5
|
Awst 2015
|
108.3
|
108.4
|
109.1
|
107.2
|
Medi 2015
|
109.2
|
110.4
|
109.6
|
108.4
|
Hydref 2015
|
109.3
|
110.9
|
111.3
|
107.6
|
Tachwedd 2015
|
110.6
|
111.5
|
112.0
|
109.3
|
Rhagfyr 2015
|
111.7
|
113.6
|
113.7
|
110.2
|
Ionawr 2016
|
113.6
|
113.9
|
115.9
|
112.2
|
Chwefror 2016
|
113.6
|
116.2
|
116.6
|
111.6
|
Mawrth 2016
|
115.3
|
117.5
|
116.5
|
114.1
|
Ebrill 2016
|
114.4
|
115.6
|
116.9
|
112.5
|
Mai 2016
|
116.0
|
116.3
|
118.2
|
114.5
|
Mehefin 2016
|
116.2
|
119.0
|
118.7
|
114.2
|
Gorffennaf 2016
|
118.0
|
120.1
|
121.4
|
115.6
|
Awst 2016
|
117.2
|
119.6
|
120.5
|
114.9
|
Medi 2016
|
117.1
|
118.9
|
119.8
|
115.2
|
Hydref 2016
|
116.9
|
118.8
|
119.9
|
115.4
|
Tachwedd 2016
|
116.9
|
119.2
|
119.1
|
115.7
|
Rhagfyr 2016
|
117.3
|
119.3
|
119.2
|
116.1
|
Ionawr 2017
|
118.1
|
120.2
|
120.6
|
116.6
|
Chwefror 2017
|
118.3
|
119.4
|
119.4
|
118.1
|
Mawrth 2017
|
118.0
|
120.2
|
120.1
|
116.9
|
Ebrill 2017
|
119.1
|
120.9
|
120.3
|
118.4
|
Mai 2017
|
119.4
|
119.8
|
121.1
|
118.9
|
Mehefin 2017
|
119.2
|
119.8
|
120.6
|
118.3
|
Gorffennaf 2017
|
121.3
|
121.5
|
123.4
|
120.2
|
Awst 2017
|
120.9
|
121.7
|
122.9
|
119.4
|
Medi 2017
|
120.1
|
122.8
|
122.6
|
118.5
|
Hydref 2017
|
119.6
|
122.2
|
123.0
|
117.8
|
Tachwedd 2017
|
118.2
|
120.1
|
121.5
|
116.6
|
Rhagfyr 2017
|
118.4
|
120.9
|
121.5
|
116.6
|
Ionawr 2018
|
119.1
|
120.5
|
122.2
|
117.7
|
Chwefror 2018
|
118.6
|
120.8
|
121.7
|
117.0
|
Mawrth 2018
|
117.2
|
119.7
|
121.2
|
115.1
|
Ebrill 2018
|
118.5
|
120.9
|
122.7
|
116.2
|
Mai 2018
|
118.8
|
121.5
|
123.3
|
116.1
|
Mehefin 2018
|
119.1
|
122.3
|
124.5
|
116.4
|
Gorffennaf 2018
|
120.3
|
125.0
|
125.4
|
117.3
|
Awst 2018
|
119.0
|
122.7
|
123.7
|
116.3
|
Medi 2018
|
118.3
|
122.8
|
123.7
|
115.2
|
Hydref 2018
|
119.2
|
123.6
|
124.3
|
116.2
|
Tachwedd 2018
|
117.8
|
122.9
|
123.1
|
114.6
|
Rhagfyr 2018
|
117.5
|
121.0
|
122.9
|
114.7
|
Ionawr 2019
|
116.7
|
122.4
|
122.5
|
113.6
|
Chwefror 2019
|
115.7
|
120.7
|
121.0
|
112.7
|
Statws y prynwr
Tracio’r mynegai, pris cyfartalog a’r newid misol a blynyddol yn ôl y math o brynwr e.e. Prynwr am y Tro Cyntaf neu Gyn Berchen-Feddiannydd
Statws cyllido
Tracio’r mynegai, pris cyfartalog a’r newid misol a blynyddol a nifer y gwerthiannau yn ôl statws cyllido, e.e. Arian Parod/Morgais
Statws yr eiddo
Tracio’r mynegai, pris cyfartalog a’r newid misol a blynyddol a nifer y gwerthiannau yn ôl cyllido yn ôl statws yr eiddo, e.e. Newydd/Presennol
Dyddiad
|
Adeilad newydd
|
Chwefror 2006
|
252650.0
|
Mawrth 2006
|
251641.0
|
Ebrill 2006
|
257854.0
|
Mai 2006
|
259579.0
|
Mehefin 2006
|
260255.0
|
Gorffennaf 2006
|
259956.0
|
Awst 2006
|
261150.0
|
Medi 2006
|
265399.0
|
Hydref 2006
|
266530.0
|
Tachwedd 2006
|
262772.0
|
Rhagfyr 2006
|
271745.0
|
Ionawr 2007
|
274876.0
|
Chwefror 2007
|
278280.0
|
Mawrth 2007
|
278458.0
|
Ebrill 2007
|
282620.0
|
Mai 2007
|
294932.0
|
Mehefin 2007
|
289917.0
|
Gorffennaf 2007
|
304660.0
|
Awst 2007
|
299488.0
|
Medi 2007
|
299954.0
|
Hydref 2007
|
306332.0
|
Tachwedd 2007
|
301753.0
|
Rhagfyr 2007
|
303759.0
|
Ionawr 2008
|
307753.0
|
Chwefror 2008
|
310055.0
|
Mawrth 2008
|
306044.0
|
Ebrill 2008
|
307540.0
|
Mai 2008
|
307693.0
|
Mehefin 2008
|
301035.0
|
Gorffennaf 2008
|
298738.0
|
Awst 2008
|
282991.0
|
Medi 2008
|
284363.0
|
Hydref 2008
|
275288.0
|
Tachwedd 2008
|
263177.0
|
Rhagfyr 2008
|
253041.0
|
Ionawr 2009
|
261640.0
|
Chwefror 2009
|
258396.0
|
Mawrth 2009
|
256747.0
|
Ebrill 2009
|
250885.0
|
Mai 2009
|
252343.0
|
Mehefin 2009
|
253852.0
|
Gorffennaf 2009
|
253394.0
|
Awst 2009
|
254157.0
|
Medi 2009
|
267287.0
|
Hydref 2009
|
265375.0
|
Tachwedd 2009
|
262749.0
|
Rhagfyr 2009
|
263553.0
|
Ionawr 2010
|
261507.0
|
Chwefror 2010
|
273951.0
|
Mawrth 2010
|
277462.0
|
Ebrill 2010
|
274435.0
|
Mai 2010
|
271064.0
|
Mehefin 2010
|
275220.0
|
Gorffennaf 2010
|
274957.0
|
Awst 2010
|
277773.0
|
Medi 2010
|
281519.0
|
Hydref 2010
|
279629.0
|
Tachwedd 2010
|
272961.0
|
Rhagfyr 2010
|
283161.0
|
Ionawr 2011
|
289150.0
|
Chwefror 2011
|
285828.0
|
Mawrth 2011
|
291118.0
|
Ebrill 2011
|
296537.0
|
Mai 2011
|
289944.0
|
Mehefin 2011
|
283922.0
|
Gorffennaf 2011
|
295959.0
|
Awst 2011
|
291318.0
|
Medi 2011
|
289495.0
|
Hydref 2011
|
290134.0
|
Tachwedd 2011
|
291768.0
|
Rhagfyr 2011
|
291777.0
|
Ionawr 2012
|
291511.0
|
Chwefror 2012
|
284673.0
|
Mawrth 2012
|
287893.0
|
Ebrill 2012
|
294862.0
|
Mai 2012
|
298252.0
|
Mehefin 2012
|
299577.0
|
Gorffennaf 2012
|
292780.0
|
Awst 2012
|
296775.0
|
Medi 2012
|
298433.0
|
Hydref 2012
|
306361.0
|
Tachwedd 2012
|
307290.0
|
Rhagfyr 2012
|
312637.0
|
Ionawr 2013
|
300893.0
|
Chwefror 2013
|
307264.0
|
Mawrth 2013
|
310746.0
|
Ebrill 2013
|
321405.0
|
Mai 2013
|
317878.0
|
Mehefin 2013
|
321390.0
|
Gorffennaf 2013
|
325662.0
|
Awst 2013
|
326209.0
|
Medi 2013
|
335504.0
|
Hydref 2013
|
340144.0
|
Tachwedd 2013
|
344289.0
|
Rhagfyr 2013
|
357205.0
|
Ionawr 2014
|
355301.0
|
Chwefror 2014
|
362950.0
|
Mawrth 2014
|
364833.0
|
Ebrill 2014
|
378146.0
|
Mai 2014
|
388469.0
|
Mehefin 2014
|
388165.0
|
Gorffennaf 2014
|
391811.0
|
Awst 2014
|
398128.0
|
Medi 2014
|
397375.0
|
Hydref 2014
|
398305.0
|
Tachwedd 2014
|
392957.0
|
Rhagfyr 2014
|
405634.0
|
Ionawr 2015
|
407847.0
|
Chwefror 2015
|
413077.0
|
Mawrth 2015
|
410866.0
|
Ebrill 2015
|
415923.0
|
Mai 2015
|
419710.0
|
Mehefin 2015
|
412064.0
|
Gorffennaf 2015
|
428504.0
|
Awst 2015
|
428525.0
|
Medi 2015
|
432855.0
|
Hydref 2015
|
437017.0
|
Tachwedd 2015
|
440608.0
|
Rhagfyr 2015
|
456657.0
|
Ionawr 2016
|
459652.0
|
Chwefror 2016
|
448129.0
|
Mawrth 2016
|
446662.0
|
Ebrill 2016
|
473740.0
|
Mai 2016
|
488999.0
|
Mehefin 2016
|
472269.0
|
Gorffennaf 2016
|
475091.0
|
Awst 2016
|
471923.0
|
Medi 2016
|
473734.0
|
Hydref 2016
|
483553.0
|
Tachwedd 2016
|
479572.0
|
Rhagfyr 2016
|
480268.0
|
Ionawr 2017
|
493619.0
|
Chwefror 2017
|
499935.0
|
Mawrth 2017
|
488848.0
|
Ebrill 2017
|
492747.0
|
Mai 2017
|
491869.0
|
Mehefin 2017
|
484279.0
|
Gorffennaf 2017
|
496033.0
|
Awst 2017
|
490275.0
|
Medi 2017
|
493218.0
|
Hydref 2017
|
497851.0
|
Tachwedd 2017
|
478833.0
|
Rhagfyr 2017
|
482847.0
|
Ionawr 2018
|
496890.0
|
Chwefror 2018
|
513622.0
|
Mawrth 2018
|
489523.0
|
Ebrill 2018
|
498630.0
|
Mai 2018
|
491144.0
|
Mehefin 2018
|
491781.0
|
Gorffennaf 2018
|
495794.0
|
Awst 2018
|
496575.0
|
Medi 2018
|
485831.0
|
Hydref 2018
|
497344.0
|
Tachwedd 2018
|
477054.0
|
Rhagfyr 2018
|
488048.0
|
Ionawr 2019
|
484369.0
|
Chwefror 2019
|
492552.0
|
Dyddiad
|
Adeilad newydd
|
Chwefror 2006
|
5.1
|
Mawrth 2006
|
4.2
|
Ebrill 2006
|
3.9
|
Mai 2006
|
6.3
|
Mehefin 2006
|
6.5
|
Gorffennaf 2006
|
6.3
|
Awst 2006
|
6.0
|
Medi 2006
|
8.9
|
Hydref 2006
|
9.8
|
Tachwedd 2006
|
6.1
|
Rhagfyr 2006
|
8.1
|
Ionawr 2007
|
10.7
|
Chwefror 2007
|
10.1
|
Mawrth 2007
|
10.7
|
Ebrill 2007
|
9.6
|
Mai 2007
|
13.6
|
Mehefin 2007
|
11.4
|
Gorffennaf 2007
|
17.2
|
Awst 2007
|
14.7
|
Medi 2007
|
13.0
|
Hydref 2007
|
14.9
|
Tachwedd 2007
|
14.8
|
Rhagfyr 2007
|
11.8
|
Ionawr 2008
|
12.0
|
Chwefror 2008
|
11.4
|
Mawrth 2008
|
9.9
|
Ebrill 2008
|
8.8
|
Mai 2008
|
4.3
|
Mehefin 2008
|
3.8
|
Gorffennaf 2008
|
-1.9
|
Awst 2008
|
-5.5
|
Medi 2008
|
-5.2
|
Hydref 2008
|
-10.1
|
Tachwedd 2008
|
-12.8
|
Rhagfyr 2008
|
-16.7
|
Ionawr 2009
|
-15.0
|
Chwefror 2009
|
-16.7
|
Mawrth 2009
|
-16.1
|
Ebrill 2009
|
-18.4
|
Mai 2009
|
-18.0
|
Mehefin 2009
|
-15.7
|
Gorffennaf 2009
|
-15.2
|
Awst 2009
|
-10.2
|
Medi 2009
|
-6.0
|
Hydref 2009
|
-3.6
|
Tachwedd 2009
|
-0.2
|
Rhagfyr 2009
|
4.2
|
Ionawr 2010
|
-0.1
|
Chwefror 2010
|
6.0
|
Mawrth 2010
|
8.1
|
Ebrill 2010
|
9.4
|
Mai 2010
|
7.4
|
Mehefin 2010
|
8.4
|
Gorffennaf 2010
|
8.5
|
Awst 2010
|
9.3
|
Medi 2010
|
5.3
|
Hydref 2010
|
5.4
|
Tachwedd 2010
|
3.9
|
Rhagfyr 2010
|
7.4
|
Ionawr 2011
|
10.6
|
Chwefror 2011
|
4.3
|
Mawrth 2011
|
4.9
|
Ebrill 2011
|
8.0
|
Mai 2011
|
7.0
|
Mehefin 2011
|
3.2
|
Gorffennaf 2011
|
7.6
|
Awst 2011
|
4.9
|
Medi 2011
|
2.8
|
Hydref 2011
|
3.8
|
Tachwedd 2011
|
6.9
|
Rhagfyr 2011
|
3.0
|
Ionawr 2012
|
0.8
|
Chwefror 2012
|
-0.4
|
Mawrth 2012
|
-1.1
|
Ebrill 2012
|
-0.6
|
Mai 2012
|
2.9
|
Mehefin 2012
|
5.5
|
Gorffennaf 2012
|
-1.1
|
Awst 2012
|
1.9
|
Medi 2012
|
3.1
|
Hydref 2012
|
5.6
|
Tachwedd 2012
|
5.3
|
Rhagfyr 2012
|
7.2
|
Ionawr 2013
|
3.2
|
Chwefror 2013
|
7.9
|
Mawrth 2013
|
7.9
|
Ebrill 2013
|
9.0
|
Mai 2013
|
6.6
|
Mehefin 2013
|
7.3
|
Gorffennaf 2013
|
11.2
|
Awst 2013
|
9.9
|
Medi 2013
|
12.4
|
Hydref 2013
|
11.0
|
Tachwedd 2013
|
12.0
|
Rhagfyr 2013
|
14.3
|
Ionawr 2014
|
18.1
|
Chwefror 2014
|
18.1
|
Mawrth 2014
|
17.4
|
Ebrill 2014
|
17.6
|
Mai 2014
|
22.2
|
Mehefin 2014
|
20.8
|
Gorffennaf 2014
|
20.3
|
Awst 2014
|
22.0
|
Medi 2014
|
18.4
|
Hydref 2014
|
17.1
|
Tachwedd 2014
|
14.1
|
Rhagfyr 2014
|
13.6
|
Ionawr 2015
|
14.8
|
Chwefror 2015
|
13.8
|
Mawrth 2015
|
12.6
|
Ebrill 2015
|
10.0
|
Mai 2015
|
8.0
|
Mehefin 2015
|
6.2
|
Gorffennaf 2015
|
9.4
|
Awst 2015
|
7.6
|
Medi 2015
|
8.9
|
Hydref 2015
|
9.7
|
Tachwedd 2015
|
12.1
|
Rhagfyr 2015
|
12.6
|
Ionawr 2016
|
12.7
|
Chwefror 2016
|
8.5
|
Mawrth 2016
|
8.7
|
Ebrill 2016
|
13.9
|
Mai 2016
|
16.5
|
Mehefin 2016
|
14.6
|
Gorffennaf 2016
|
10.9
|
Awst 2016
|
10.1
|
Medi 2016
|
9.4
|
Hydref 2016
|
10.6
|
Tachwedd 2016
|
8.8
|
Rhagfyr 2016
|
5.2
|
Ionawr 2017
|
7.4
|
Chwefror 2017
|
11.6
|
Mawrth 2017
|
9.4
|
Ebrill 2017
|
4.0
|
Mai 2017
|
0.6
|
Mehefin 2017
|
2.5
|
Gorffennaf 2017
|
4.4
|
Awst 2017
|
3.9
|
Medi 2017
|
4.1
|
Hydref 2017
|
3.0
|
Tachwedd 2017
|
-0.2
|
Rhagfyr 2017
|
0.5
|
Ionawr 2018
|
0.7
|
Chwefror 2018
|
2.7
|
Mawrth 2018
|
0.1
|
Ebrill 2018
|
1.2
|
Mai 2018
|
-0.2
|
Mehefin 2018
|
1.6
|
Gorffennaf 2018
|
-0.1
|
Awst 2018
|
1.3
|
Medi 2018
|
-1.5
|
Hydref 2018
|
-0.1
|
Tachwedd 2018
|
-0.4
|
Rhagfyr 2018
|
1.1
|
Ionawr 2019
|
-2.5
|
Chwefror 2019
|
-4.1
|
Dyddiad
|
Adeilad newydd
|
Chwefror 2006
|
1.7
|
Mawrth 2006
|
-0.4
|
Ebrill 2006
|
2.5
|
Mai 2006
|
0.7
|
Mehefin 2006
|
0.3
|
Gorffennaf 2006
|
-0.1
|
Awst 2006
|
0.5
|
Medi 2006
|
1.6
|
Hydref 2006
|
0.4
|
Tachwedd 2006
|
-1.4
|
Rhagfyr 2006
|
3.4
|
Ionawr 2007
|
1.2
|
Chwefror 2007
|
1.2
|
Mawrth 2007
|
0.1
|
Ebrill 2007
|
1.5
|
Mai 2007
|
4.4
|
Mehefin 2007
|
-1.7
|
Gorffennaf 2007
|
5.1
|
Awst 2007
|
-1.7
|
Medi 2007
|
0.2
|
Hydref 2007
|
2.1
|
Tachwedd 2007
|
-1.5
|
Rhagfyr 2007
|
0.7
|
Ionawr 2008
|
1.3
|
Chwefror 2008
|
0.8
|
Mawrth 2008
|
-1.3
|
Ebrill 2008
|
0.5
|
Mai 2008
|
0.1
|
Mehefin 2008
|
-2.2
|
Gorffennaf 2008
|
-0.8
|
Awst 2008
|
-5.3
|
Medi 2008
|
0.5
|
Hydref 2008
|
-3.2
|
Tachwedd 2008
|
-4.4
|
Rhagfyr 2008
|
-3.8
|
Ionawr 2009
|
3.4
|
Chwefror 2009
|
-1.2
|
Mawrth 2009
|
-0.6
|
Ebrill 2009
|
-2.3
|
Mai 2009
|
0.6
|
Mehefin 2009
|
0.6
|
Gorffennaf 2009
|
-0.2
|
Awst 2009
|
0.3
|
Medi 2009
|
5.2
|
Hydref 2009
|
-0.7
|
Tachwedd 2009
|
-1.0
|
Rhagfyr 2009
|
0.3
|
Ionawr 2010
|
-0.8
|
Chwefror 2010
|
4.8
|
Mawrth 2010
|
1.3
|
Ebrill 2010
|
-1.1
|
Mai 2010
|
-1.2
|
Mehefin 2010
|
1.5
|
Gorffennaf 2010
|
-0.1
|
Awst 2010
|
1.0
|
Medi 2010
|
1.4
|
Hydref 2010
|
-0.7
|
Tachwedd 2010
|
-2.4
|
Rhagfyr 2010
|
3.7
|
Ionawr 2011
|
2.1
|
Chwefror 2011
|
-1.2
|
Mawrth 2011
|
1.8
|
Ebrill 2011
|
1.9
|
Mai 2011
|
-2.2
|
Mehefin 2011
|
-2.1
|
Gorffennaf 2011
|
4.2
|
Awst 2011
|
-1.6
|
Medi 2011
|
-0.6
|
Hydref 2011
|
0.2
|
Tachwedd 2011
|
0.6
|
Rhagfyr 2011
|
0.0
|
Ionawr 2012
|
-0.1
|
Chwefror 2012
|
-2.4
|
Mawrth 2012
|
1.1
|
Ebrill 2012
|
2.4
|
Mai 2012
|
1.2
|
Mehefin 2012
|
0.4
|
Gorffennaf 2012
|
-2.3
|
Awst 2012
|
1.4
|
Medi 2012
|
0.6
|
Hydref 2012
|
2.7
|
Tachwedd 2012
|
0.3
|
Rhagfyr 2012
|
1.7
|
Ionawr 2013
|
-3.8
|
Chwefror 2013
|
2.1
|
Mawrth 2013
|
1.1
|
Ebrill 2013
|
3.4
|
Mai 2013
|
-1.1
|
Mehefin 2013
|
1.1
|
Gorffennaf 2013
|
1.3
|
Awst 2013
|
0.2
|
Medi 2013
|
2.8
|
Hydref 2013
|
1.4
|
Tachwedd 2013
|
1.2
|
Rhagfyr 2013
|
3.8
|
Ionawr 2014
|
-0.5
|
Chwefror 2014
|
2.2
|
Mawrth 2014
|
0.5
|
Ebrill 2014
|
3.6
|
Mai 2014
|
2.7
|
Mehefin 2014
|
-0.1
|
Gorffennaf 2014
|
0.9
|
Awst 2014
|
1.6
|
Medi 2014
|
-0.2
|
Hydref 2014
|
0.2
|
Tachwedd 2014
|
-1.3
|
Rhagfyr 2014
|
3.2
|
Ionawr 2015
|
0.6
|
Chwefror 2015
|
1.3
|
Mawrth 2015
|
-0.5
|
Ebrill 2015
|
1.2
|
Mai 2015
|
0.9
|
Mehefin 2015
|
-1.8
|
Gorffennaf 2015
|
4.0
|
Awst 2015
|
0.0
|
Medi 2015
|
1.0
|
Hydref 2015
|
1.0
|
Tachwedd 2015
|
0.8
|
Rhagfyr 2015
|
3.6
|
Ionawr 2016
|
0.7
|
Chwefror 2016
|
-2.5
|
Mawrth 2016
|
-0.3
|
Ebrill 2016
|
6.1
|
Mai 2016
|
3.2
|
Mehefin 2016
|
-3.4
|
Gorffennaf 2016
|
0.6
|
Awst 2016
|
-0.7
|
Medi 2016
|
0.4
|
Hydref 2016
|
2.1
|
Tachwedd 2016
|
-0.8
|
Rhagfyr 2016
|
0.2
|
Ionawr 2017
|
2.8
|
Chwefror 2017
|
1.3
|
Mawrth 2017
|
-2.2
|
Ebrill 2017
|
0.8
|
Mai 2017
|
-0.2
|
Mehefin 2017
|
-1.5
|
Gorffennaf 2017
|
2.4
|
Awst 2017
|
-1.2
|
Medi 2017
|
0.6
|
Hydref 2017
|
0.9
|
Tachwedd 2017
|
-3.8
|
Rhagfyr 2017
|
0.8
|
Ionawr 2018
|
2.9
|
Chwefror 2018
|
3.4
|
Mawrth 2018
|
-4.7
|
Ebrill 2018
|
1.9
|
Mai 2018
|
-1.5
|
Mehefin 2018
|
0.1
|
Gorffennaf 2018
|
0.8
|
Awst 2018
|
0.2
|
Medi 2018
|
-2.2
|
Hydref 2018
|
2.4
|
Tachwedd 2018
|
-4.1
|
Rhagfyr 2018
|
2.3
|
Ionawr 2019
|
-0.8
|
Chwefror 2019
|
1.7
|
Dyddiad
|
Adeilad newydd
|
Chwefror 2006
|
62.0
|
Mawrth 2006
|
61.7
|
Ebrill 2006
|
63.2
|
Mai 2006
|
63.6
|
Mehefin 2006
|
63.8
|
Gorffennaf 2006
|
63.7
|
Awst 2006
|
64.0
|
Medi 2006
|
65.1
|
Hydref 2006
|
65.4
|
Tachwedd 2006
|
64.4
|
Rhagfyr 2006
|
66.6
|
Ionawr 2007
|
67.4
|
Chwefror 2007
|
68.2
|
Mawrth 2007
|
68.3
|
Ebrill 2007
|
69.3
|
Mai 2007
|
72.3
|
Mehefin 2007
|
71.1
|
Gorffennaf 2007
|
74.7
|
Awst 2007
|
73.4
|
Medi 2007
|
73.6
|
Hydref 2007
|
75.1
|
Tachwedd 2007
|
74.0
|
Rhagfyr 2007
|
74.5
|
Ionawr 2008
|
75.5
|
Chwefror 2008
|
76.0
|
Mawrth 2008
|
75.0
|
Ebrill 2008
|
75.4
|
Mai 2008
|
75.4
|
Mehefin 2008
|
73.8
|
Gorffennaf 2008
|
73.2
|
Awst 2008
|
69.4
|
Medi 2008
|
69.7
|
Hydref 2008
|
67.5
|
Tachwedd 2008
|
64.5
|
Rhagfyr 2008
|
62.0
|
Ionawr 2009
|
64.2
|
Chwefror 2009
|
63.4
|
Mawrth 2009
|
63.0
|
Ebrill 2009
|
61.5
|
Mai 2009
|
61.9
|
Mehefin 2009
|
62.2
|
Gorffennaf 2009
|
62.1
|
Awst 2009
|
62.3
|
Medi 2009
|
65.5
|
Hydref 2009
|
65.1
|
Tachwedd 2009
|
64.4
|
Rhagfyr 2009
|
64.6
|
Ionawr 2010
|
64.1
|
Chwefror 2010
|
67.2
|
Mawrth 2010
|
68.0
|
Ebrill 2010
|
67.3
|
Mai 2010
|
66.5
|
Mehefin 2010
|
67.5
|
Gorffennaf 2010
|
67.4
|
Awst 2010
|
68.1
|
Medi 2010
|
69.0
|
Hydref 2010
|
68.6
|
Tachwedd 2010
|
66.9
|
Rhagfyr 2010
|
69.4
|
Ionawr 2011
|
70.9
|
Chwefror 2011
|
70.1
|
Mawrth 2011
|
71.4
|
Ebrill 2011
|
72.7
|
Mai 2011
|
71.1
|
Mehefin 2011
|
69.6
|
Gorffennaf 2011
|
72.6
|
Awst 2011
|
71.4
|
Medi 2011
|
71.0
|
Hydref 2011
|
71.1
|
Tachwedd 2011
|
71.5
|
Rhagfyr 2011
|
71.5
|
Ionawr 2012
|
71.5
|
Chwefror 2012
|
69.8
|
Mawrth 2012
|
70.6
|
Ebrill 2012
|
72.3
|
Mai 2012
|
73.1
|
Mehefin 2012
|
73.4
|
Gorffennaf 2012
|
71.8
|
Awst 2012
|
72.8
|
Medi 2012
|
73.2
|
Hydref 2012
|
75.1
|
Tachwedd 2012
|
75.3
|
Rhagfyr 2012
|
76.7
|
Ionawr 2013
|
73.8
|
Chwefror 2013
|
75.3
|
Mawrth 2013
|
76.2
|
Ebrill 2013
|
78.8
|
Mai 2013
|
77.9
|
Mehefin 2013
|
78.8
|
Gorffennaf 2013
|
79.8
|
Awst 2013
|
80.0
|
Medi 2013
|
82.3
|
Hydref 2013
|
83.4
|
Tachwedd 2013
|
84.4
|
Rhagfyr 2013
|
87.6
|
Ionawr 2014
|
87.1
|
Chwefror 2014
|
89.0
|
Mawrth 2014
|
89.4
|
Ebrill 2014
|
92.7
|
Mai 2014
|
95.2
|
Mehefin 2014
|
95.2
|
Gorffennaf 2014
|
96.1
|
Awst 2014
|
97.6
|
Medi 2014
|
97.4
|
Hydref 2014
|
97.7
|
Tachwedd 2014
|
96.4
|
Rhagfyr 2014
|
99.5
|
Ionawr 2015
|
100.0
|
Chwefror 2015
|
101.3
|
Mawrth 2015
|
100.7
|
Ebrill 2015
|
102.0
|
Mai 2015
|
102.9
|
Mehefin 2015
|
101.0
|
Gorffennaf 2015
|
105.1
|
Awst 2015
|
105.1
|
Medi 2015
|
106.1
|
Hydref 2015
|
107.2
|
Tachwedd 2015
|
108.0
|
Rhagfyr 2015
|
112.0
|
Ionawr 2016
|
112.7
|
Chwefror 2016
|
109.9
|
Mawrth 2016
|
109.5
|
Ebrill 2016
|
116.2
|
Mai 2016
|
119.9
|
Mehefin 2016
|
115.8
|
Gorffennaf 2016
|
116.5
|
Awst 2016
|
115.7
|
Medi 2016
|
116.2
|
Hydref 2016
|
118.6
|
Tachwedd 2016
|
117.6
|
Rhagfyr 2016
|
117.8
|
Ionawr 2017
|
121.0
|
Chwefror 2017
|
122.6
|
Mawrth 2017
|
119.9
|
Ebrill 2017
|
120.8
|
Mai 2017
|
120.6
|
Mehefin 2017
|
118.7
|
Gorffennaf 2017
|
121.6
|
Awst 2017
|
120.2
|
Medi 2017
|
120.9
|
Hydref 2017
|
122.1
|
Tachwedd 2017
|
117.4
|
Rhagfyr 2017
|
118.4
|
Ionawr 2018
|
121.8
|
Chwefror 2018
|
125.9
|
Mawrth 2018
|
120.0
|
Ebrill 2018
|
122.3
|
Mai 2018
|
120.4
|
Mehefin 2018
|
120.6
|
Gorffennaf 2018
|
121.6
|
Awst 2018
|
121.8
|
Medi 2018
|
119.1
|
Hydref 2018
|
121.9
|
Tachwedd 2018
|
117.0
|
Rhagfyr 2018
|
119.7
|
Ionawr 2019
|
118.8
|
Chwefror 2019
|
120.8
|