Year Sterling (millions) 1997-12-31 12730 1998-12-31 12704 1999-12-31 12812 2000-12-31 13642 2001-12-31 13490 2002-12-31 11903 2003-12-31 11313 2004-12-31 11508 2005-12-31 13312 2006-12-31 14251 2007-12-31 20103 2008-12-31 23728 2009-12-31 15639 2010-12-31 13853 2011-12-31 13231 2012-12-31 13367 2013-12-31 14423 2014-12-31 14398 2015-12-31 14515 2016-12-31 16056 2017-12-31 19038 2018-12-31 19825 2019-12-31 20109 2020-12-31 22456 2021-12-31 21608 2022-12-31 22341 2023-12-31 20295