Year Sterling (millions) 1997-12-31 19223 1998-12-31 19402 1999-12-31 18783 2000-12-31 15470 2001-12-31 19225 2002-12-31 16300 2003-12-31 15552 2004-12-31 15792 2005-12-31 18093 2006-12-31 21365 2007-12-31 21275 2008-12-31 25451 2009-12-31 26594