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

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Previous versions

Superseded files Reason for update Date superseded
Download .xls Download .csv Scheduled update/revision 19 November 2021
Download .xls Download .csv Scheduled update/revision 20 November 2020
Download .xls Download .csv Scheduled update/revision 22 November 2019
Download .xls Download .csv
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
Download .xls Download .csv Scheduled update/revision 21 November 2018
Download .xls Download .csv Scheduled update/revision 21 November 2017
Download .xls Download .csv Scheduled update/revision 17 November 2016