Provides files to download data as it existed for this dataset on previous dates.

Statistics are most often revised for 1 of 2 reasons:

  1. For certain statistics initial estimates are released with the expectation that these may be revised and updated as further data becomes available.
  2. Revisions may also be made when methods or systems are changed.

These types of planned revisions should not be confused with errors in released statistics, which are genuine mistakes. Such mistakes occur rarely and, when they do happen, corrections are made in a timely manner, announced and clearly explained to users in line with the Code of Practice for Official Statistics (Principle 2, Practice 7).

Latest version

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Previous versions

Superseded files Reason for update Date superseded
Download .xls Download .csv Scheduled update/revision 13 February 2019
Download .xls Download .csv Scheduled update/revision 13 February 2018
Download .xls Download .csv Scheduled update/revision 21 March 2017
Download .xls Download .csv Scheduled update/revision 14 February 2017
Download .xls Download .csv Scheduled update/revision 16 February 2016