Year Sterling (millions) 1997-12-31 12129 1998-12-31 12550 1999-12-31 14389 2000-12-31 17780 2001-12-31 17559 2002-12-31 18928 2003-12-31 20410 2004-12-31 20298 2005-12-31 23067 2006-12-31 25331 2007-12-31 28915 2008-12-31 28656 2009-12-31 26657 2010-12-31 23406 2011-12-31 16086 2012-12-31 14591 2013-12-31 12941 2014-12-31 11928 2015-12-31 12928 2016-12-31 13961 2017-12-31 14090 2018-12-31 12337 2019-12-31 12179 2020-12-31 15029 2021-12-31 14817 2022-12-31 13364 2023-12-31 12648