Year Sterling (millions) 1997-12-31 3983 1998-12-31 4156 1999-12-31 4461 2000-12-31 4921 2001-12-31 4525 2002-12-31 4137 2003-12-31 3498 2004-12-31 3407 2005-12-31 2948 2006-12-31 3760 2007-12-31 3842 2008-12-31 3703 2009-12-31 4017 2010-12-31 3119 2011-12-31 2727 2012-12-31 3011 2013-12-31 3176 2014-12-31 3405 2015-12-31 3054 2016-12-31 3144 2017-12-31 3473 2018-12-31 3674 2019-12-31 4063 2020-12-31 4521 2021-12-31 4064 2022-12-31 4195 2023-12-31 4264