Year	Sterling (millions)
2004-12-31	310
2005-12-31	533
2006-12-31	490
2007-12-31	1012
2008-12-31	1080
2009-12-31	647
2010-12-31	634
2011-12-31	1390
2012-12-31	443
2013-12-31	201
2014-12-31	142
2015-12-31	168