Year Index 1996-01-01 0.24587800000000000 1997-01-01 0.28708600000000000 1998-01-01 0.30722400000000000 1999-01-01 0.31645100000000004 2000-01-01 0.29727400000000000 2001-01-01 0.35504900000000000 2002-01-01 0.46061400000000000 2003-01-01 0.50487700000000000 2004-01-01 0.51465800000000000 2005-01-01 0.51833300000000000 2006-01-01 0.37512800000000000 2007-01-01 0.36203500000000000 2008-01-01 0.40005900000000000 2009-01-01 0.48038600000000000 2010-01-01 0.49669399999999997 2011-01-01 0.50873200000000000 2012-01-01 0.52782700000000000 2013-01-01 0.56184499999999990 2014-01-01 0.58535600000000000