Year Sterling (millions) 1997-12-31 9 1998-12-31 41 1999-12-31 4 2000-12-31 0 2001-12-31 25 2002-12-31 30 2003-12-31 0 2004-12-31 48 2005-12-31 2 2006-12-31 140 2007-12-31 0 2008-12-31 142 2009-12-31 70