Year Sterling (millions) 1997-12-31 10953 1998-12-31 13319 1999-12-31 12279 2000-12-31 13968 2001-12-31 12581 2002-12-31 15332 2003-12-31 14062 2004-12-31 14336 2005-12-31 17943 2006-12-31 17702 2007-12-31 23979 2008-12-31 23124 2009-12-31 20539 2010-12-31 19285 2011-12-31 18086 2012-12-31 17110 2013-12-31 17729 2014-12-31 19119 2015-12-31 16381 2016-12-31 18810 2017-12-31 20261 2018-12-31 21181 2019-12-31 20922 2020-12-31 24620 2021-12-31 27974 2022-12-31 25657 2023-12-31 21127