The gap between girls and boys was largest in Welsh Second language (11.9 percentage points) and smallest in Physical Education (2.0 percentage points).
Gwelwyd y bwlch mwyaf rhwng merched a bechgyn mewn Cymraeg Ail Iaith (11.9 pwynt canran) a’r bwlch lleiaf yn Addysg Gorfforol (2.0 pwynt canran).