Year Sterling (millions) 1997-12-31 10890 1998-12-31 14357 1999-12-31 12919 2000-12-31 13761 2001-12-31 12627 2002-12-31 11553 2003-12-31 11284 2004-12-31 10675 2005-12-31 11885 2006-12-31 11636 2007-12-31 12154 2008-12-31 12547 2009-12-31 13532 2010-12-31 12211 2011-12-31 4057 2012-12-31 3887 2013-12-31 3756 2014-12-31 3988 2015-12-31 3702 2016-12-31 4263 2017-12-31 4173 2018-12-31 4838 2019-12-31 4166 2020-12-31 5033 2021-12-31 4149 2022-12-31 4252 2023-12-31 4019