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Data a dadansoddiadau o Gyfrifiad 2021
Cyhoeddwyd: 22 December 2017
Cyhoeddwyd: 20 November 2017
Cyhoeddwyd: 1 June 2017
Cyhoeddwyd: 2 February 2017
Cyhoeddwyd: 6 October 2016
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.