The Department for Education does not hold information on the average number of hours children have spent exercising in schools each week since May 2010.
Following the recent review of the national curriculum, PE continues to be compulsory at all 4 key stages.
Through the primary PE and sport premium we are also providing over £450 million of ring-fenced funding across three academic years until 2016. The funding goes directly to primary schools, to be spent on the improvement of PE and sport, so that all pupils develop a healthy lifestyle. We published a research brief into the use of the primary PE and sport premium in September 2014. Our findings show that the mean amount of time spent on curricular PE in primary schools has increased by 13 minutes from 109 to 122 minutes a week from 2012/13 to 2013/14. 84 per cent of schools reported an increase in pupil engagement with PE during school time and 83 per cent saw an increase in participation in after school clubs.
Our research was based on a survey of 586 primary schools between April and July 2014. Our full report can be found here: https://www.gov.uk/government/publications/pe-and-sport-premium-an-investigation-in-primary-schools