This is consistent over time, but the percentage of children and young people aged 3 to 15 years who can speak Welsh has been decreasing in general since the beginning of 2019.
Mae hyn yn gyson dros amser ond mae’r ganran o plant a phobl ifanc 5 i 15 oed sy’n gallu siarad Cymraeg wedi bod yn gostwng yn gyffredinol ers dechrau 2019.