Year Index 1996-01-01 0.50576400000000000 1997-01-01 0.48266400000000004 1998-01-01 0.31420000000000000 1999-01-01 0.38168900000000000 2000-01-01 0.37290900000000000 2001-01-01 0.35513700000000000 2002-01-01 0.33400200000000000 2003-01-01 0.30931800000000000 2004-01-01 0.32179800000000003 2005-01-01 0.35122700000000000 2006-01-01 0.37225900000000000 2007-01-01 0.37380300000000000 2008-01-01 0.41130400000000000 2009-01-01 0.40889100000000000 2010-01-01 0.41929700000000003 2011-01-01 0.39055500000000004 2012-01-01 0.40324699999999997 2013-01-01 0.41213400000000000 2014-01-01 0.39585500000000000