Pupils by school and gender in secondary schools and secondary school aged pupils in middle schools, September 2018 to August 2019, file type: ODS, file size: 23 KB
Disgyblion yn ôl ysgol a rhyw mewn ysgolion uwchradd a disgyblion oedran ysgol uwchradd mewn ysgolion canol, Medi 2018 i Awst 2019, Saesneg yn unig, math o ffeil: ODS, maint ffeil: 23 KB