Year Sterling (millions) 1997-12-31 7412 1998-12-31 6481 1999-12-31 7315 2000-12-31 6794 2001-12-31 6426 2002-12-31 6246 2003-12-31 5696 2004-12-31 5814 2005-12-31 5908 2006-12-31 6436 2007-12-31 7613 2008-12-31 5706 2009-12-31 5336 2010-12-31 4872 2011-12-31 3917 2012-12-31 3579 2013-12-31 3948 2014-12-31 3839 2015-12-31 4343 2016-12-31 3752 2017-12-31 3993 2018-12-31 3983 2019-12-31 3965 2020-12-31 4549 2021-12-31 4851 2022-12-31 4419 2023-12-31 4142