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).

Previous versions

Superseded files Reason for update Date superseded
csv (53.9 kB) xlsx (44.9 kB) structured text (53.0 kB) Scheduled update/revision 18 July 2019 09:30
csv (53.3 kB) xlsx (44.4 kB) structured text (52.1 kB) Scheduled update/revision 18 April 2019 09:30
csv (53.1 kB) xlsx (44.2 kB) structured text (51.8 kB) Scheduled update/revision 18 January 2019 07:40
csv (53.4 kB) xlsx (44.0 kB) structured text (51.4 kB) Scheduled update/revision 19 October 2018 09:30
csv (52.5 kB) xlsx (43.7 kB) structured text (50.9 kB) Scheduled update/revision 22 August 2018 09:30
csv (51.8 kB) xlsx (43.3 kB) structured text (50.2 kB) Scheduled update/revision 12 April 2018 09:30
csv (51.6 kB) xlsx (43.1 kB) structured text (49.9 kB) Scheduled update/revision 11 January 2018 09:30
csv (62.1 kB) xlsx (52.4 kB) structured text (75.6 kB) Scheduled update/revision 5 January 2018 13:37
csv (32.9 kB) xlsx (27.2 kB) structured text (49.5 kB) Scheduled update/revision 22 November 2017 09:30
csv (33.1 kB) xlsx (27.0 kB) structured text (49.2 kB) Scheduled update/revision 13 July 2017 09:30
csv (33.4 kB) xlsx (26.6 kB) structured text (50.1 kB) Scheduled update/revision 13 April 2017 09:30
csv (33.1 kB) xlsx (26.4 kB) structured text (49.7 kB) Scheduled update/revision 12 January 2017 09:30
csv (33.0 kB) xlsx (26.7 kB) structured text (49.2 kB) Scheduled update/revision 13 October 2016 09:30
csv (32.5 kB) xlsx (26.5 kB) structured text (48.9 kB) Scheduled update/revision 5 August 2016 09:30
csv (31.9 kB) xlsx (26.0 kB) structured text (48.2 kB) Scheduled update/revision 6 April 2016 09:30

Important notes and usage information

Open periods are consistent with those in the QNA and Closed periods are consistent with BB18