Here is a snap shot of average prices for a litre of unleaded petrol in the United Kingdom from January 2007 to June 2011 which will give you an idea of how quickly and dramatically fuel prices can change:
Month 2007 2008 2009 2010 2011
January 87.3p 104.0p 87.0p 111.4p 127.9p
Febuary 86.7p 104.3p 90.2p 112.1p 128.7p
March 89.4p 106.4p 90.8p 115.6p 132.2p
April 92.6p 108.1p 94.8p 120.5p 134.7p
May 95.6p 112.5p 97.7p 121.0p 136.7p
June 96.9p 117.6p 102.2p 118.2p 135.7p
July 96.7p 118.7p 103.0p 117.3p 134.9p
August 96.0p 113.4p 103.9p 116.2p 135.5p
September95.3p 112.0p 106.2p 115.3p 135.4p
October 97.7p 104.7p 105.7p 117.4p 134.6p
November 101.1p 94.9p 108.4p 118.9p 133.8p
December 102.8p 89.5p 108.2p 122.0p 132.5p