Year Sterling (millions) 1998-12-31 145 1999-12-31 143 2000-12-31 350 2001-12-31 171 2002-12-31 179 2003-12-31 135 2004-12-31 110 2005-12-31 111 2006-12-31 157 2007-12-31 73 2008-12-31 449 2009-12-31 449 2012-12-31 523