Data on absenteeism by persistent absentees and all pupils of compulsory school age (5 to 15) in maintained primary and secondary schools for September 2014 to August 2015.
Mae data am absenoldeb disgyblion sy’n absennol yn gyson a phob disgybl oedran ysgol gorfodol (5 i 15) mewn ysgolion cynradd ac uwchradd a gynhelir ar gyfer Medi 2014 i Awst 2015.