Year Sterling (millions) 1997-12-31 15781 1998-12-31 13861 1999-12-31 14172 2000-12-31 13912 2001-12-31 14083 2002-12-31 13963 2003-12-31 13493 2004-12-31 14091 2005-12-31 14861 2006-12-31 15464 2007-12-31 17479 2008-12-31 18280 2009-12-31 15400 2010-12-31 14421 2011-12-31 14937 2012-12-31 14891 2013-12-31 16009 2014-12-31 15603 2015-12-31 18588 2016-12-31 19194 2017-12-31 18698 2018-12-31 19113 2019-12-31 17283 2020-12-31 18465 2021-12-31 17651 2022-12-31 17255 2023-12-31 16224