As a result, around a third of statistics for Wales published for FYE 2023 have been revised although most of the rates (over 85%) have changed by less than 2 percentage points.
O ganlyniad, mae tua thraean o'r ystadegau ar gyfer Cymru a gyhoeddwyd ar gyfer FYE 2023 wedi'u diwygio er bod y rhan fwyaf o'r cyfraddau (dros 85%) wedi newid llai na 2 pwynt canran.