This is the first release to publish revised quarterly country and regional GDP data time series back to Quarter 1 2012 since the release for Quarter 3 (July to September) 2020.
Dyma'r datganiad cyntaf i gyhoeddi cyfres amser data GDP chwarterol a rhanbarthol diwygiedig yn ôl i Chwarter 1 2012 ers rhyddhau Chwarter 3 (Gorffennaf i Fedi) 2020.