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Data a dadansoddiadau o Gyfrifiad 2021
Cyhoeddwyd: 18 July 2022
Cyhoeddwyd: 16 March 2021
Cyhoeddwyd: 19 March 2020
Cyhoeddwyd: 24 January 2018
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.