Corrections
17 June 2020
The 2018-based file has now been corrected.
Notices
30 May 2020
The 2018-based file is incorrect and will be replaced by the end of June. More details of the error are in the notices at the top of our table of contents page. Note that the size of the error for variant projections will differ to some extent from that affecting the main (principal) projection for Wales.
