In 2023/24 there were 1,052 enrolments at pupil referral units, which accounted for 44.7% of all EOTAS enrolments.
Yn 2019, ni chyflwynodd 4 ysgol o blith y 1,502 o ysgolion ddatganiad Ysgol ar gyfer y CBGY (cyfradd gyflwyno o 99.7%).