Year Sterling (millions) 1998-12-31 4 1999-12-31 4 2000-12-31 4 2001-12-31 13 2002-12-31 4 2003-12-31 3 2004-12-31 8 2005-12-31 3 2006-12-31 4 2007-12-31 2 2008-12-31 3 2009-12-31 3 2010-12-31 3 2011-12-31 3 2012-12-31 2