Summary of absenteeism at school before and during the coronavirus (COVID-19) pandemic: September 2014 to August 2022, file type: ODS, file size: 24 KB
Arolwg o farn y cyhoedd ar y coronafeirws (COVID-19): 25 i 29 Medi 2020, math o ffeil: ODS, maint ffeil: 8 KB