The figures for working days lost and workers involved have been rounded and consequently the sum of the constituent items may not agree precisely with the totals.
Prior to 2015, figures for widespread stoppages which cannot be disaggregated down to regional level are included in the UK total but excluded from the regional figures in the table above. This may have the effect of lowering the strike rate for some regions.
When a stoppage has been identified as covering more than one broad industry group or region, the actual number of working days lost and workers involved will be allocated to the specific broad industry group or region. However, the stoppage will be included in each industry category or region.
Cells containing a hyphen (-) represent a zero or less than 50