Year Sterling (millions) 2004-12-31 752 2005-12-31 1101 2006-12-31 1686 2007-12-31 2078 2008-12-31 1028 2009-12-31 1340 2010-12-31 870 2011-12-31 1264 2012-12-31 1561 2013-12-31 1780 2014-12-31 1697 2015-12-31 1643 2016-12-31 1710 2017-12-31 3009 2018-12-31 2252