Year Sterling (millions) 1997-12-31 2253 1998-12-31 2757 1999-12-31 3754 2000-12-31 6170 2001-12-31 4227 2002-12-31 19595 2003-12-31 17502 2004-12-31 24954 2005-12-31 19031 2006-12-31 20561 2007-12-31 31630 2008-12-31 19974 2009-12-31 22484