Year	Sterling (millions)
1997-12-31	1657
1998-12-31	339
1999-12-31	397
2000-12-31	53
2001-12-31	0
2002-12-31	153
2003-12-31	99
2004-12-31	0
2005-12-31	0
2006-12-31	2376
2007-12-31	852
2008-12-31	1323
2009-12-31	660