Correct. The UK unemployment rate and total number of people unemployed was higher when Labour left government than when it entered it. That said, unemployment was relatively low for much of the party’s term.
The number of people unemployed in the UK and the unemployment rate were both higher when Labour left office in 2010 than when it came to power in 1997.
That summary hides a varying trend during that time: unemployment was relatively low for most of Labour’s stint, but rose considerably during the recession in the late noughties.
When Labour won the 1997 election the unemployment rate for adults was 7.2%. When it left government in 2010, it was 7.9%.
The number of people who were unemployed rose from 2 million to 2.5 million.
Unemployment rates generally fell from the time of Labour taking power in 1997, rising after 2005. During the Labour government unemployment remained at around 5% for most of the 13-year period—in the ballpark of full employment, in practice.
The total number of people unemployed followed roughly the same pattern.
And Labour's time in government ended in a recession, which led to increased unemployment from 2008 onwards.
The main measure of unemployment in the UK is provided by the Labour Force Survey. This looks at “people without a job who have been actively seeking work within the last four weeks and are available to start work within the next two weeks.” It then shows this number as a share of the economically active population.
Correction 10 April 2017
We have corrected the figures given for the number of people unemployed.