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 (2.1 MB)

Previous versions

Superseded files Reason for update Date superseded
xls (2.1 MB) Scheduled update/revision 26 September 2019 09:30
xls (2.0 MB) Scheduled update/revision 26 June 2019 09:30
xls (2.0 MB) Scheduled update/revision 28 March 2019 09:30
xls (2.0 MB) Scheduled update/revision 13 December 2018 09:30
xls (2.0 MB) Scheduled update/revision 24 September 2018 09:30
xls (2.0 MB) Scheduled update/revision 20 June 2018 09:30
xls (2.0 MB)
Correction See correction
An error occurred for the data preceding the year ending March 2011 in tables 4b, 4c, 4d and 4e due to copying of data from an incorrect dataset. We have corrected this error. You can see all previous versions of this data on the previous versions page. We apologise for any inconvenience.
12 June 2018 08:28
xls (2.6 MB) Scheduled update/revision 26 April 2018 09:30
xls (2.6 MB) Scheduled update/revision 20 December 2017 09:30
xls (2.6 MB) Scheduled update/revision 20 September 2017 09:30
xls (2.6 MB) Scheduled update/revision 12 July 2017 08:10
xls (7.2 MB) Scheduled update/revision 21 June 2017 09:30
xls (6.5 MB) Scheduled update/revision 17 March 2017 09:30
xls (6.5 MB) Scheduled update/revision 13 December 2016 09:30
xls (6.4 MB) Scheduled update/revision 28 September 2016 09:30
xls (6.4 MB) Scheduled update/revision 16 June 2016 09:30
xls (5.8 MB) Scheduled update/revision 24 March 2016 09:30