Year Sterling (millions) 1997-12-31 1587 1998-12-31 1399 1999-12-31 1153 2000-12-31 1949 2001-12-31 1613 2002-12-31 1768 2003-12-31 1638 2004-12-31 2964 2005-12-31 3801 2006-12-31 5262 2007-12-31 6858 2008-12-31 8669 2009-12-31 7034 2010-12-31 6268 2011-12-31 9573 2012-12-31 10618 2013-12-31 12557 2014-12-31 14682 2015-12-31 13325 2016-12-31 14031 2017-12-31 11345 2018-12-31 11998 2019-12-31 12405 2020-12-31 12178 2021-12-31 19625 2022-12-31 15016 2023-12-31 20104