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

xlsx (86.4 kB)

Previous versions

Superseded files Reason for update Date superseded
xlsx (79.2 kB)
Correction See correction
An error occured in table E4, making the numbers in the table we published higher than the true figures.
24 May 2019 12:22