Year Sterling (millions) 1997-12-31 60 1998-12-31 34 1999-12-31 28 2000-12-31 43 2001-12-31 31 2002-12-31 35 2003-12-31 48 2004-12-31 44 2005-12-31 1468 2006-12-31 2319 2007-12-31 1874 2008-12-31 148 2009-12-31 165 2010-12-31 134 2011-12-31 182 2012-12-31 175 2013-12-31 133 2014-12-31 229 2015-12-31 263 2016-12-31 307 2017-12-31 290 2018-12-31 296 2019-12-31 313 2020-12-31 316 2021-12-31 273 2022-12-31 271 2023-12-31 246