Year Sterling (millions) 1998-12-31 1546 1999-12-31 1768 2000-12-31 2060 2001-12-31 2290 2002-12-31 2468 2003-12-31 2762 2004-12-31 3303 2005-12-31 3933 2006-12-31 4799 2007-12-31 5264 2008-12-31 4917 2009-12-31 5018 2010-12-31 5318 2011-12-31 4882 2012-12-31 4584