Year Sterling (millions) 1997-12-31 13539 1998-12-31 13728 1999-12-31 15139 2000-12-31 17114 2001-12-31 17568 2002-12-31 19119 2003-12-31 21411 2004-12-31 23926 2005-12-31 25549 2006-12-31 28083 2007-12-31 31830 2008-12-31 32270 2009-12-31 34050 2010-12-31 33334 2011-12-31 28118 2012-12-31 28022 2013-12-31 30094 2014-12-31 29607 2015-12-31 30891 2016-12-31 33311 2017-12-31 35842 2018-12-31 36952 2019-12-31 38051 2020-12-31 42355 2021-12-31 46382 2022-12-31 48996 2023-12-31 47813