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Dewis pwnc arall neu clirio pob hidlydd.
Rhyddhawyd ar: 3 February 2025 | Gwybodaeth gorfforaethol
Rhyddhawyd ar: 12 July 2019 | Gwybodaeth gorfforaethol
Rhyddhawyd ar: 28 November 2023 | Gwybodaeth gorfforaethol
Definition of religion (detailed), categories, and changes since the 2011 Census for use with research and analysis using Census 2021 data.
Definition of national identity (detailed), categories, and changes since the 2011 Census for use with research and analysis using Census 2021 data.
Rhyddhawyd ar: 27 October 2025 | Methodoleg
Detailed description and insight into the development of the ONS’s new Price Index of Private Rents methodology and comparison with the ONS's old Index of Private Housing Rental Prices methodology.
Rhyddhawyd ar: 11 May 2022 | Gwybodaeth gorfforaethol
Rhyddhawyd ar: 17 December 2024 | Gwybodaeth gorfforaethol
Rhyddhawyd ar: 10 October 2023 | Gwybodaeth gorfforaethol
Use these groups of categories to research and analyse Census 2021 main language (detailed) data.
Rhyddhawyd ar: 25 May 2023 | Gwybodaeth gorfforaethol
Rhyddhawyd ar: 19 March 2024 | Gwybodaeth gorfforaethol
Use these groups of categories to research and analyse Census 2021 ethnic group (detailed) data.
