Year Sterling (millions) 1997-12-31 457 1998-12-31 443 1999-12-31 469 2000-12-31 443 2001-12-31 437 2002-12-31 435 2003-12-31 405 2004-12-31 387 2005-12-31 358 2006-12-31 411 2007-12-31 403 2008-12-31 383 2009-12-31 488 2010-12-31 336 2011-12-31 476 2012-12-31 1422 2013-12-31 462 2014-12-31 581 2015-12-31 866 2016-12-31 930 2017-12-31 669 2018-12-31 769 2019-12-31 913