Year Index 1996-01-01 0.15189400000000000 1997-01-01 0.19724800000000000 1998-01-01 0.23303400000000002 1999-01-01 0.18577500000000000 2000-01-01 0.18741700000000000 2001-01-01 0.17706600000000000 2002-01-01 0.19499400000000000 2003-01-01 0.22588800000000000 2004-01-01 0.23201500000000000 2005-01-01 0.25185300000000000 2006-01-01 0.24976700000000002 2007-01-01 0.24051900000000000 2008-01-01 0.24532800000000002 2009-01-01 0.27516399999999996 2010-01-01 0.27446500000000000 2011-01-01 0.26689300000000000 2012-01-01 0.25312900000000000 2013-01-01 0.19068000000000000 2014-01-01 0.28813500000000000