Year Sterling (millions) 1997-12-31 5990 1998-12-31 6579 1999-12-31 6236 2000-12-31 6059 2001-12-31 6687 2002-12-31 7567 2003-12-31 8228 2004-12-31 9278 2005-12-31 10282 2006-12-31 11332 2007-12-31 13254 2008-12-31 13154 2009-12-31 14443 2010-12-31 15209 2011-12-31 16049 2012-12-31 17126 2013-12-31 15907 2014-12-31 18666 2015-12-31 19538 2016-12-31 21246 2017-12-31 21692 2018-12-31 22284 2019-12-31 24190 2020-12-31 30866 2021-12-31 34690 2022-12-31 33875 2023-12-31 33260