Year Sterling (millions) 1998-12-31 479 1999-12-31 455 2000-12-31 704 2001-12-31 1060 2002-12-31 1167 2003-12-31 865 2004-12-31 910 2005-12-31 711 2006-12-31 842 2007-12-31 393 2008-12-31 500 2009-12-31 450 2010-12-31 473 2011-12-31 439 2012-12-31 143