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Dewis pwnc arall neu clirio pob hidlydd.
Nid yw holl gynnwys y cyfrifia wedi'i ryddhau. Edrychwch am ddatganiadau sydd i ddod ar y calendr datganiadau. Fel arall, gallwch greu set ddata eich fun.
Rhyddhawyd ar: 23 August 2023 | Data a gyrchwyd gan y defnyddiwr
Rhyddhawyd ar: 11 December 2012 | Erthygl
Rhyddhawyd ar: 29 January 2020 | Gwybodaeth gorfforaethol
Rhyddhawyd ar: 21 August 2018 | Gwybodaeth gorfforaethol
Rhyddhawyd ar: 02 January 2020 | Gwybodaeth gorfforaethol
Rhyddhawyd ar: 12 December 2022 | Gwybodaeth gorfforaethol
Rhyddhawyd ar: 26 October 2023 | Methodoleg
Quality information affecting Welsh language data from Census 2021 to help correctly interpret them.
Rhyddhawyd ar: 10 October 2023 | Gwybodaeth gorfforaethol
Use these groups of categories to research and analyse Census 2021 Welsh language skills data.
Rhyddhawyd ar: 28 November 2023 | Gwybodaeth gorfforaethol
Definition of Welsh language skills, categories, and changes since the 2011 Census for use with research and analysis using Census 2021 data.
Rhyddhawyd ar: 31 October 2024 | Cyfres amser
