Pupils entitled to free school meals have been less likely to attend school, with the gap being an average of 5.3 percentage points between 16 to 20 May.
Mae disgyblion sydd â hawl i brydau ysgol am ddim wedi bod yn llai tebygol o fynychu’r ysgol, gyda’r bwlch ar gyfartaledd yn 5.3 pwynt canran rhwng 16 i 20 Mai 2022.