Year Sterling (millions) 2004-12-31 24887 2005-12-31 27719 2006-12-31 31706 2007-12-31 33123 2008-12-31 30719 2009-12-31 34127 2010-12-31 35355 2011-12-31 34374 2012-12-31 33345 2013-12-31 32368 2014-12-31 32592 2015-12-31 32975 2016-12-31 34202 2017-12-31 34019 2018-12-31 32654 2019-12-31 32455 2020-12-31 31470 2021-12-31 32168 2022-12-31 34267