33.4% (1,013,000) reported that they could understand spoken Welsh, 26.0% (789,700) could read and 24.0% (726,200) could write Welsh.
Dywedodd 33.4% (1,013,000) y gallent ddeall Cymraeg llafar, gallai 26.0% (789,700) ddarllen yn Gymraeg a 24.0% (726,200) ysgrifennu’n Gymraeg.