Year Sterling (millions) 1997-12-31 7264 1998-12-31 7384 1999-12-31 8369 2000-12-31 8855 2001-12-31 9915 2002-12-31 11132 2003-12-31 11750 2004-12-31 13390 2005-12-31 14999 2006-12-31 17520 2007-12-31 19639 2008-12-31 18236 2009-12-31 18671 2010-12-31 17928 2011-12-31 23778 2012-12-31 24548 2013-12-31 27509 2014-12-31 30680 2015-12-31 34389 2016-12-31 39204 2017-12-31 44732 2018-12-31 46654 2019-12-31 48579 2020-12-31 61970 2021-12-31 63027 2022-12-31 61478 2023-12-31 61055