Year Index 1996-01-01 0.29471900000000000 1997-01-01 0.37998000000000004 1998-01-01 0.24923100000000000 1999-01-01 0.37902199999999997 2000-01-01 0.23266399999999998 2001-01-01 0.22937200000000000 2002-01-01 0.16964700000000000 2003-01-01 0.24907900000000000 2004-01-01 0.25539200000000000 2005-01-01 0.23394500000000000 2006-01-01 0.26930900000000000 2007-01-01 0.25700500000000004 2008-01-01 0.35726600000000000 2009-01-01 0.30881700000000000 2010-01-01 0.23348600000000000 2011-01-01 0.25506700000000000 2012-01-01 0.15139300000000000 2013-01-01 0.16857700000000000 2014-01-01 0.23278100000000000