Year Sterling (millions) 1998-12-31 552 1999-12-31 693 2000-12-31 971 2001-12-31 1449 2002-12-31 1610 2003-12-31 2088 2004-12-31 2561 2005-12-31 3233 2006-12-31 3139 2007-12-31 4305 2008-12-31 3600 2009-12-31 7415 2010-12-31 11277 2011-12-31 15259 2012-12-31 17290