7.4% of pupils (7,620) were in infant classes of over 30 pupils, up from 7.2% (7,581) in January 2019.
Roedd 7.4% o ddisgyblion (7,620) mewn dosbarthiadau babanod o dros 30 o ddisgyblion, i fyny o 7.2% (7,581) ym mis Ionawr 2019.