Welsh speakers were twice as likely to speak Welsh every day if they had at least one fluent Welsh parent, compared with those Welsh speakers who did not have a fluent parent.
Roedd siaradwyr Cymraeg ddwywaith yn fwy tebygol o siarad Cymraeg bob dydd os oedd o leiaf un rhiant rhugl Cymraeg ganddynt, o gymharu â’r siaradwyr Cymraeg hynny nad oedd ganddynt riant rhugl.