Year Sterling (millions) 1998-12-31 4 1999-12-31 4 2000-12-31 11 2001-12-31 8 2002-12-31 11 2003-12-31 5 2004-12-31 10 2005-12-31 10 2006-12-31 9 2007-12-31 3 2008-12-31 4 2009-12-31 2 2010-12-31 4 2011-12-31 4 2012-12-31 1