Year Sterling (millions) 1997-12-31 12728 1998-12-31 15239 1999-12-31 19508 2000-12-31 21878 2001-12-31 25399 2002-12-31 20803 2003-12-31 31429 2004-12-31 24250 2005-12-31 24230 2006-12-31 25917 2007-12-31 35841 2008-12-31 40709 2009-12-31 56365