Year Sterling (millions) 1997-12-31 1823 1998-12-31 1606 1999-12-31 902 2000-12-31 672 2001-12-31 262 2002-12-31 171 2003-12-31 30 2004-12-31 22 2005-12-31 5 2006-12-31 5 2007-12-31 7 2008-12-31 8 2009-12-31 8 2010-12-31 7 2011-12-31 5 2012-12-31 2 2013-12-31 4 2014-12-31 3 2015-12-31 10 2016-12-31 1 2017-12-31 1 2018-12-31 134 2019-12-31 4 2020-12-31 4 2021-12-31 2 2022-12-31 2 2023-12-31 2