Year	Sterling (millions)
2004-12-31	12504
2005-12-31	17055
2006-12-31	21214
2007-12-31	25860
2008-12-31	28260
2009-12-31	22777
2010-12-31	21988
2011-12-31	19683
2012-12-31	19617
2013-12-31	17998
2014-12-31	14984
2015-12-31	12796
2016-12-31	13233
2017-12-31	15635
2018-12-31	16932