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 (428.5 kB)

Previous versions

Superseded files Reason for update Date superseded
xlsx (408.8 kB)
Correction See correction
Please note changes have been made to Table 10 in the February 2021 dataset. The estimates for the proportion of people who in the past seven days self-isolated because of the coronavirus (COVID-19) pandemic have been corrected. The table incorrectly showed the proportion of people who indicated they did not self-isolate instead of those who self-isolated. The sample size for estimates based on this indicator has been updated so that it reflects the whole sample used to provide the estimate, whereas previously it showed the sample size of those who indicated they did not self-isolate. No recalculation was necessary for this. These changes where necessary because of a human error and have now been fixed.
16 September 2021 15:30