Year Sterling (millions) 1997-12-31 10653 1998-12-31 9912 1999-12-31 9550 2000-12-31 10101 2001-12-31 10987 2002-12-31 11367 2003-12-31 11577 2004-12-31 12816 2005-12-31 13338 2006-12-31 12952 2007-12-31 14592 2008-12-31 13462 2009-12-31 14282 2010-12-31 14789 2011-12-31 15550 2012-12-31 17112 2013-12-31 17902 2014-12-31 19600 2015-12-31 20498 2016-12-31 24935 2017-12-31 27852 2018-12-31 28171 2019-12-31 27798 2020-12-31 40422 2021-12-31 39946 2022-12-31 39792 2023-12-31 38576