Year	Sterling (millions)
1998-12-31	6
1999-12-31	144
2000-12-31	566
2001-12-31	-26
2002-12-31	-325
2004-12-31	3
2005-12-31	30
2006-12-31	-22
2007-12-31	93
2008-12-31	-20
2011-12-31	0
2012-12-31	0