Year Sterling (millions) 1997-12-31 282 1998-12-31 281 1999-12-31 260 2000-12-31 182 2001-12-31 177 2002-12-31 176 2003-12-31 151 2004-12-31 230 2005-12-31 223 2006-12-31 242 2007-12-31 243 2008-12-31 227 2009-12-31 278 2010-12-31 353 2011-12-31 416 2012-12-31 323 2013-12-31 332 2014-12-31 342 2015-12-31 310 2016-12-31 362 2017-12-31 376 2018-12-31 447 2019-12-31 526