Year	Sterling (millions)
1997-12-31	3911
1998-12-31	1876
1999-12-31	1212
2000-12-31	1208
2001-12-31	1055
2002-12-31	638
2003-12-31	600
2004-12-31	332
2005-12-31	0
2006-12-31	0
2007-12-31	0
2008-12-31	0
2009-12-31	0
2010-12-31	0
2011-12-31	0
2012-12-31	0
2013-12-31	0
2014-12-31	0
2015-12-31	0
2016-12-31	0
2017-12-31	0
2018-12-31	0
2019-12-31	0