Year Sterling (millions) 1998-12-31 2608 1999-12-31 2262 2000-12-31 2229 2001-12-31 4223 2002-12-31 4242 2003-12-31 3658 2004-12-31 7185 2005-12-31 5055 2006-12-31 7758 2007-12-31 15778 2008-12-31 21684 2009-12-31 22297 2010-12-31 25044 2011-12-31 25231 2012-12-31 23995