Year Sterling (millions) 1998-12-31 1277 1999-12-31 1158 2000-12-31 975 2001-12-31 1201 2002-12-31 1354 2003-12-31 938 2004-12-31 421 2005-12-31 501 2006-12-31 478 2007-12-31 441 2008-12-31 1486 2009-12-31 1501 2010-12-31 1694 2011-12-31 3773 2012-12-31 3495