Year Sterling (millions) 1997-12-31 379 1998-12-31 409 1999-12-31 430 2000-12-31 439 2001-12-31 496 2002-12-31 485 2003-12-31 516 2004-12-31 441 2005-12-31 452 2006-12-31 490 2007-12-31 483 2008-12-31 444 2009-12-31 393 2010-12-31 375 2011-12-31 322 2012-12-31 297 2013-12-31 274 2014-12-31 284 2015-12-31 277 2016-12-31 342 2017-12-31 391 2018-12-31 373 2019-12-31 354 2020-12-31 393 2021-12-31 406 2022-12-31 414 2023-12-31 393