Year	Sterling (millions)
1999-12-31	2
2000-12-31	6
2001-12-31	20
2002-12-31	49
2003-12-31	121
2004-12-31	76
2005-12-31	162
2006-12-31	307
2007-12-31	182
2008-12-31	164
2009-12-31	124
2010-12-31	198
2011-12-31	217
2012-12-31	172
2013-12-31	110
2014-12-31	91
2015-12-31	273
2016-12-31	306
2017-12-31	76
2018-12-31	60
2019-12-31	165