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Data a dadansoddiadau o Gyfrifiad 2021
Cyhoeddwyd: 28 June 2022
Cyhoeddwyd: 9 November 2021
Cyhoeddwyd: 6 April 2021
Cyhoeddwyd: 1 September 2020
We moved them to The National Archives website, to keep this website as responsive as possible.
Please note: all historical data is still on this website.