Year Sterling (millions) 1998-12-31 22 1999-12-31 10 2000-12-31 9 2001-12-31 2 2002-12-31 9 2003-12-31 28 2004-12-31 30 2005-12-31 22 2006-12-31 90 2007-12-31 100 2008-12-31 98 2009-12-31 80 2010-12-31 55 2011-12-31 107 2012-12-31 104