Year Sterling (millions) 1997-12-31 8776 1998-12-31 9190 1999-12-31 9629 2000-12-31 9919 2001-12-31 9609 2002-12-31 9996 2003-12-31 10672 2004-12-31 10762 2005-12-31 11700 2006-12-31 12146 2007-12-31 12980 2008-12-31 13925 2009-12-31 14302 2010-12-31 14656 2011-12-31 15339 2012-12-31 16425 2013-12-31 17746 2014-12-31 19285 2015-12-31 24446 2016-12-31 24987 2017-12-31 25720 2018-12-31 25672 2019-12-31 24898 2020-12-31 22857 2021-12-31 22098 2022-12-31 21326 2023-12-31 20735