Year Sterling (millions) 1998-12-31 193 1999-12-31 25 2000-12-31 53 2001-12-31 51 2002-12-31 418 2003-12-31 560 2004-12-31 539 2005-12-31 679 2006-12-31 619 2007-12-31 357 2008-12-31 474 2012-12-31 505