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Data a dadansoddiadau o Gyfrifiad 2021
Cyhoeddwyd: 7 September 2022
Cyhoeddwyd: 24 November 2021
Cyhoeddwyd: 25 November 2020
Cyhoeddwyd: 25 November 2019
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.