(According to the Office for National Statistics, in 2005 and 2006, 55% of all stoppages lasted for just a single day. This was up from 49% in 2001. In 1988, the figure was 42%. In 1977, only 17% of stoppages lasted for a single day, while 18.5% lasted 12 days or more.)
One-day strikes now account for 55% of industrial stoppages in the UK.