Year Sterling (millions) 1997-12-31 4440 1998-12-31 4573 1999-12-31 4621 2000-12-31 4365 2001-12-31 5229 2002-12-31 5127 2003-12-31 5235 2004-12-31 5493 2005-12-31 5900 2006-12-31 8050 2007-12-31 6854 2008-12-31 7379 2009-12-31 6682 2010-12-31 7088 2011-12-31 8156 2012-12-31 7464 2013-12-31 8039 2014-12-31 9036 2015-12-31 10207 2016-12-31 10381 2017-12-31 10712 2018-12-31 11704 2019-12-31 13466 2020-12-31 17175 2021-12-31 19786 2022-12-31 24784 2023-12-31 25095