Accordingly, the series has been amended to a working age definition of 18-64 for both males and females, rather than its earlier definition of 18 to 64 for males and 18 to 59 for females.
Yn unol â hyn, diwygiwyd diffiniad y gyfres ar gyfer oedran gweithio dynion a menywod o 18 i 64 oed, yn hytrach na'r diffiniad cynharach o 18 i 64 ar gyfer dynion a 18 i 59 ar gyfer menywod.