Year Sterling (millions) 1998-12-31 2 1999-12-31 2 2000-12-31 3 2001-12-31 2 2002-12-31 5 2003-12-31 5 2004-12-31 18 2005-12-31 8 2006-12-31 3 2007-12-31 3 2008-12-31 4 2009-12-31 3 2010-12-31 23 2011-12-31 5 2012-12-31 3