Year Sterling (millions) 1997-12-31 935 1998-12-31 1683 1999-12-31 4014 2000-12-31 5706 2001-12-31 5700 2002-12-31 5579 2003-12-31 5679 2004-12-31 4857 2005-12-31 5068 2006-12-31 6651 2007-12-31 7948 2008-12-31 11212 2009-12-31 12712