We published the first estimate on 19 August 2022, published the second estimate on 23 September 2022 and the third estimate on 27 October 2022.
Fe wnaethom gyhoeddi’r amcangyfrif cyntaf ar 19 Awst 2022, yr ail amcangyfrif ar 23 Medi 2022 a'r trydydd amcangyfrif ar 27 Hydref 2022.