Year Sterling (millions) 1998-12-31 5 1999-12-31 4 2000-12-31 9 2001-12-31 7 2002-12-31 7 2003-12-31 4 2004-12-31 6 2005-12-31 3 2006-12-31 5 2007-12-31 1 2008-12-31 4 2009-12-31 -2 2010-12-31 4 2011-12-31 2 2012-12-31 4