Percentage of the population who speak Welsh daily and can speak more than just a few words, by Welsh region, file type: ODS, file size: 5 KB
Gallu'r boblogaeth yn y Gymraeg (Arolwg defnydd iaith, Gorffennaf 2019 i Fawrth 2020), math o ffeil: ODS, maint ffeil: 11 KB