Year Sterling (millions) 1997-12-31 36 1998-12-31 23 1999-12-31 32 2000-12-31 30 2001-12-31 25 2002-12-31 0 2003-12-31 0 2004-12-31 0 2005-12-31 0 2006-12-31 0 2007-12-31 37 2008-12-31 36 2009-12-31 249