Year Index 1996-01-01 0.17987100000000000 1997-01-01 0.19113100000000000 1998-01-01 0.20303800000000002 1999-01-01 0.16197200000000000 2000-01-01 0.22566200000000000 2001-01-01 0.23080900000000001 2002-01-01 0.32309899999999997 2003-01-01 0.44827600000000000 2004-01-01 0.42129900000000000 2005-01-01 0.19418800000000000 2006-01-01 0.20598000000000002 2007-01-01 0.23245400000000000 2008-01-01 0.24670599999999998 2009-01-01 0.25662300000000000 2010-01-01 0.32609800000000000 2011-01-01 0.28817300000000000 2012-01-01 0.31834400000000000 2013-01-01 0.31973800000000000 2014-01-01 0.32029200000000000