Year	Sterling (millions)
1998-12-31	9
1999-12-31	13
2000-12-31	11
2001-12-31	9
2002-12-31	8
2003-12-31	17
2004-12-31	9
2005-12-31	8
2006-12-31	11
2007-12-31	9
2008-12-31	11
2009-12-31	18
2010-12-31	25
2011-12-31	36
2012-12-31	21