Year Sterling (millions) 1997-12-31 8679 1998-12-31 9074 1999-12-31 9500 2000-12-31 9800 2001-12-31 9501 2002-12-31 9886 2003-12-31 10525 2004-12-31 10603 2005-12-31 11484 2006-12-31 11834 2007-12-31 12573 2008-12-31 13317 2009-12-31 13760 2010-12-31 14195 2011-12-31 14848 2012-12-31 16038 2013-12-31 17401 2014-12-31 18900 2015-12-31 24136 2016-12-31 24684 2017-12-31 25413 2018-12-31 25384 2019-12-31 24648 2020-12-31 22702 2021-12-31 21968 2022-12-31 21204 2023-12-31 20618