33.0% (999,700) reported that they could understand spoken Welsh, 25.8% (781,900) could read and 23.5% (712,700) could write Welsh.
Dywedodd 33.0% (999,700) y gallent ddeall Cymraeg llafar, gallai 25.8% (781,900) ddarllen yn Gymraeg a 23.5% (712,700) ysgrifennu’n Gymraeg.