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

xls (1.7 MB)

Previous versions

Superseded files Reason for update Date superseded
xls (1.5 MB) Scheduled update/revision 27 April 2017 09:30
xls (1.6 MB) Scheduled update/revision 19 January 2017 09:30
xls (1.3 MB) Scheduled update/revision 20 October 2016 09:30
xls (1.7 MB) Scheduled update/revision 21 July 2016 09:30
xls (882.2 kB) Scheduled update/revision 21 April 2016 09:30
xls (891.9 kB) Scheduled update/revision 21 January 2016 09:30