Year Index 1996-01-01 0.22035200000000000 1997-01-01 0.21893400000000002 1998-01-01 0.22841599999999998 1999-01-01 0.21123300000000000 2000-01-01 0.22916999999999998 2001-01-01 0.19591700000000000 2002-01-01 0.22646000000000000 2003-01-01 0.19414500000000000 2004-01-01 0.19337900000000000 2005-01-01 0.15448499999999998 2006-01-01 0.16038400000000000 2007-01-01 0.21477300000000000 2008-01-01 0.18373399999999998 2009-01-01 0.22196300000000002 2010-01-01 0.23636200000000000 2011-01-01 0.20158600000000000 2012-01-01 0.24521199999999999 2013-01-01 0.03582700000000000 2014-01-01 0.23418699999999998