Year Index 1996-01-01 0.19617400000000000 1997-01-01 0.18400100000000000 1998-01-01 0.31411700000000000 1999-01-01 0.38564000000000000 2000-01-01 0.43500700000000000 2001-01-01 0.37005000000000000 2002-01-01 0.43094000000000000 2003-01-01 0.38366800000000000 2004-01-01 0.36250400000000000 2005-01-01 0.33053299999999997 2006-01-01 0.28731500000000000 2007-01-01 0.32624300000000000 2008-01-01 0.31702100000000000 2009-01-01 0.32425300000000000 2010-01-01 0.34006000000000000 2011-01-01 0.35338400000000003 2012-01-01 0.37346300000000000 2013-01-01 0.33004100000000000 2014-01-01 0.33842700000000000