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Dewis pwnc arall neu clirio pob hidlydd.
Rhyddhawyd ar: 14 April 2023 | Gwybodaeth gorfforaethol
Rhyddhawyd ar: 28 November 2023 | Gwybodaeth gorfforaethol
Definition of main language, categories, and changes since the 2011 Census for use with research and analysis using Census 2021 data.
Rhyddhawyd ar: 30 January 2026 | Gwybodaeth gorfforaethol
Definition of main language (detailed), categories, and changes since the 2011 Census for use with research and analysis using Census 2021 data.
Rhyddhawyd ar: 7 April 2022 | Gwybodaeth gorfforaethol
Rhyddhawyd ar: 10 October 2023 | Gwybodaeth gorfforaethol
Use these groups of categories to research and analyse Census 2021 main language (detailed) data.
Definition of multiple main languages in household, categories, and changes since the 2011 Census for use with research and analysis using Census 2021 data.
Rhyddhawyd ar: 25 June 2026 | Gwybodaeth gorfforaethol
Rhyddhawyd ar: 25 September 2023 | Gwybodaeth gorfforaethol
Use these groups of categories to research and analyse Census 2021 multiple main languages in household data.
Rhyddhawyd ar: 2 April 2025 | Gwybodaeth gorfforaethol
