Year Index 1996-01-01 0.14108800000000002 1997-01-01 0.22851999999999997 1998-01-01 0.24954300000000000 1999-01-01 0.24131900000000000 2000-01-01 0.11831199999999999 2001-01-01 0.18021099999999998 2002-01-01 0.29038500000000000 2003-01-01 0.25645700000000000 2004-01-01 0.24182700000000000 2005-01-01 0.24340500000000000 2006-01-01 0.23527700000000000 2007-01-01 0.27080900000000000 2008-01-01 0.31356900000000000 2009-01-01 0.35492800000000000 2010-01-01 0.46157000000000000 2011-01-01 0.41702100000000003 2012-01-01 0.43482600000000005 2013-01-01 0.36329400000000000 2014-01-01 0.42356099999999997