Year Sterling (millions) 1997-12-31 2991 1998-12-31 4001 1999-12-31 4502 2000-12-31 3517 2001-12-31 3836 2002-12-31 1562 2003-12-31 5186 2004-12-31 4674 2005-12-31 6478 2006-12-31 6191 2007-12-31 5194 2008-12-31 2137 2009-12-31 1362