The School Census, ‘Educated Other than at School’ Census (EOTAS) and the Independent School Census were suspended in January 2021 as schools were closed during the national lockdown.
Gan fod data gwaharddiadau yn cael eu casglu yn y casgliad CYBLD a EOTAS ar ôl diwedd y flwyddyn academaidd, caeodd rhai ysgolion cyn iddynt allu adrodd am eu gwaharddiadau.