This needs further analysis and attempts are being made to gather National Pupil Database data for more in depth objective analysis in future reports.
Er bod angen dadansoddi hyn ymhellach ac mae ymdrechion yn cael eu gwneud i gasglu data Cronfa Ddata Disgyblion Cenedlaethol ar gyfer dadansoddiad gwrthrychol manylach mewn adroddiadau yn y dyfodol.