The annual figures relate to 2007-08 and concern funding provided by the taxpayer to finance the head of state.

Last year's accounts revealed the Queen and other members of her family cost the taxpayer 62p per person over the 12 month period to March 31 2007.

The 2006-07 figures also showed the most expensive official overseas trip was a series of chartered flights made by Charles and the Duchess of Cornwall to the Gulf and Bosnia in February and March 2007 which cost £345,710.

The total cost of keeping the Queen and the Royal Family fell during the 2006-07 period by 0.3% to £37.3 million compared with the previous financial year.

The accounts showed the cost of royal travel rose by £100,000, compared with the previous financial year, to £5.6 million.

Sir Alan Reid, Keeper of the Privy Purse, confirmed last year the widely-held belief that the monarch does switch off lights if she finds them on and no-one around.