Year Sterling (millions) 1997-12-31 19442 1998-12-31 17629 1999-12-31 15316 2000-12-31 14416 2001-12-31 12483 2002-12-31 13513 2003-12-31 17275 2004-12-31 18082 2005-12-31 20883 2006-12-31 23625 2007-12-31 25811 2008-12-31 27123 2009-12-31 26401 2010-12-31 19764 2011-12-31 17952 2012-12-31 15217 2013-12-31 14986 2014-12-31 17968 2015-12-31 25619 2016-12-31 25743 2017-12-31 26265 2018-12-31 32741 2019-12-31 34497 2020-12-31 33603 2021-12-31 33621 2022-12-31 35890 2023-12-31 37786