42% of children receiving care and support aged 13 or 14 years old who matched to the NDP had achieved the CSI at Key Stage 3.
Roedd 42% o blant sy'n derbyn gofal a chymorth sy'n 13 neu 14 oed ac wedi'u paru i Gronfa Ddata Genedlaethol y Disgyblion wedi cyflawni'r Dangosydd Pwnc Craidd yng Nghyfnod Allweddol 3.