Over the course of the 9-year time series, the gap between the two groups has remained relatively stable with the rate between 14 and 16 percentage points lower for babies in Flying Start areas.
Dros y cyfnod o 9 mlynedd, mae’r bwlch rhwng y ddau grŵp wedi parhau’n gymharol sefydlog, gyda'r gyfradd rhwng 14 ac 16 pwynt canran yn is yn ardaloedd Dechrau’n Deg.