An average of 6.4% of half-day school sessions were recorded as authorised absence for pupils aged 5 to 15 over the latest week, down from 6.5% the week before.
Ymhlith disgyblion statudol oed ysgol, dros y pythefnos diwethaf disgyblion ym mlwyddyn 6 yw'r lleiaf tebygol o fod yn bresennol yn yr ysgol.