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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: 22 June 2022 | Gwybodaeth gorfforaethol
How we check the quality of the data
Rhyddhawyd ar: 13 January 2016 | Gwybodaeth gorfforaethol
Details of other issues that affected the quality of the 2001 Census data.
Rhyddhawyd ar: 17 November 2016 | Gwybodaeth gorfforaethol
Rhyddhawyd ar: 16 January 2026 | Methodoleg
What the UK trade statistics cover, how we produce them, and their quality and comparability. Includes definitions and latest, past and upcoming changes.
Rhyddhawyd ar: 20 November 2023 | Gwybodaeth gorfforaethol
Rhyddhawyd ar: 06 September 2023 | Methodoleg
Known quality information affecting demography, migration and international migration data from Census 2021 in England and Wales.
Rhyddhawyd ar: 28 January 2025 | Methodoleg
Quality and methodology information for national population projections, detailing the strengths and limitations of the data, methods used and data uses and users.
Rhyddhawyd ar: 09 February 2023 | Gwybodaeth gorfforaethol
Rhyddhawyd ar: 14 March 2023 | Methodoleg
Measures and interactive tools showing the quality and quality assurance of Census 2021 data in England and Wales.
Rhyddhawyd ar: 09 December 2022 | Methodoleg
How we maximised the quality of Census 2021 population estimates during the processing and quality assurance of the final statistics.
