However, the school census shows that the percentage of children able to speak Welsh at home has remained at a similar level to previous years (just over 10%).
Fodd bynnag, mae’r cyfrifiad ysgolion yn dangos bod nifer y plant sy’n gallu siarad Cymraeg gartref wedi aros ar lefel debyg i’r blynyddoedd blaenorol (ychydig dros 10%).