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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: 4 February 2021 | Gwybodaeth gorfforaethol
Rhyddhawyd ar: 26 September 2018 | Methodoleg
These are the Personal Well-being Frequently Asked Questions (FAQ's) which will be updated as required.
Rhyddhawyd ar: 13 January 2016 | Gwybodaeth gorfforaethol
Questions and answers about the One Number Census process and results.
Rhyddhawyd ar: 25 May 2016 | Methodoleg
This document provides answers to some questions we think users may ask which are specific to the 2014-based subnational population projections.
Rhyddhawyd ar: 21 July 2025 | Gwybodaeth gorfforaethol
Watch our video to find out what happens when you take part in an ONS survey, why we need the information and how we keep it safe and secure.
Rhyddhawyd ar: 3 October 2019 | Gwybodaeth gorfforaethol
Rhyddhawyd ar: 7 July 2026 | Gwybodaeth gorfforaethol
Questions and answers on the Safety During Childhood Survey pilot including participation, confidentiality and feedback.
Rhyddhawyd ar: 26 August 2022 | Gwybodaeth gorfforaethol
Rhyddhawyd ar: 12 October 2016 | Gwybodaeth gorfforaethol
12 October 2016
Rhyddhawyd ar: 20 August 2020 | Gwybodaeth gorfforaethol
