Year Sterling (millions) 1997-12-31 3495 1998-12-31 1874 1999-12-31 3139 2000-12-31 4425 2001-12-31 3570 2002-12-31 1477 2003-12-31 4394 2004-12-31 3362 2005-12-31 6207 2006-12-31 5836 2007-12-31 8837 2008-12-31 9042 2009-12-31 14406 2010-12-31 3658 2011-12-31 4132 2012-12-31 6801 2013-12-31 3353 2014-12-31 2767 2015-12-31 3338 2016-12-31 2283 2017-12-31 3303 2018-12-31 3503 2019-12-31 3863