Survey of public views on the coronavirus (COVID-19): 29 January to 1 February 2021, file type: ODS, file size: 8 KB
Arolwg o farn y cyhoedd ar y coronafeirws (COVID-19): 29 Ionawr i 1 Chwefror 2021, math o ffeil: ODS, maint ffeil: 8 KB