Year Sterling (millions) 1997-12-31 4224 1998-12-31 4937 1999-12-31 5765 2000-12-31 7242 2001-12-31 8280 2002-12-31 8420 2003-12-31 8428 2004-12-31 8712 2005-12-31 10025 2006-12-31 12255 2007-12-31 14308 2008-12-31 14473 2009-12-31 13630 2010-12-31 11591 2011-12-31 7572 2012-12-31 6853 2013-12-31 6377 2014-12-31 5551 2015-12-31 5612 2016-12-31 6065 2017-12-31 6689 2018-12-31 5153 2019-12-31 5099 2020-12-31 6257 2021-12-31 5533 2022-12-31 5313 2023-12-31 5233