33.5% (1,014,700) reported that they could understand spoken Welsh, 26.0% (788,100) could read and 23.8% (720,000) could write Welsh.
Dywedodd 33.5% (1,014,700) y gallent ddeall Cymraeg llafar, gallai 26.0% (788,100) ddarllen yn Gymraeg a 23.8% (720,000) ysgrifennu’n Gymraeg.