Year Sterling (millions) 1997-12-31 20394 1998-12-31 21568 1999-12-31 22868 2000-12-31 24265 2001-12-31 9752 2002-12-31 5235 2003-12-31 1832 2004-12-31 0 2005-12-31 0 2006-12-31 0