Year Sterling (millions) 1997-12-31 345 1998-12-31 134 1999-12-31 91 2000-12-31 116 2001-12-31 327 2002-12-31 86 2003-12-31 114 2004-12-31 263 2005-12-31 1048 2006-12-31 76 2007-12-31 4650 2008-12-31 4607 2009-12-31 5961