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 (606.2 kB)

Previous versions

Superseded files Reason for update Date superseded
xls (569.9 kB)
Correction See correction
An error was discovered in the split between expenditure on Civil and Defence R &D. The corrected values have now been calculated and the release and all related data have been updated. The original release is also available.
15 March 2019 12:13
xls (466.4 kB) Scheduled update/revision 21 November 2018 09:30
xls (487.4 kB) Scheduled update/revision 21 November 2017 09:30
xls (2.2 MB) Scheduled update/revision 17 November 2016 09:30
xls (1.6 MB) Scheduled update/revision 20 November 2015 00:00