The widest gap was in Literacy in 2022/23 with a 5.0 point difference and the narrowest was Numeracy with a 0.3 point difference.
Roedd y bwlch ehangaf mewn Llythrennedd yn 2022/23 gyda gwahaniaeth o 5.0 pwynt a'r culaf oedd Rhifedd gyda gwahaniaeth o 0.3 pwynt.