Year Index 1996-01-01 0.21100500000000003 1997-01-01 0.26668100000000000 1998-01-01 -0.37488499999999997 1999-01-01 0.09653200000000000 2000-01-01 0.12466800000000000 2001-01-01 0.17598800000000000 2002-01-01 0.15433500000000000 2003-01-01 0.21289400000000000 2004-01-01 0.22846300000000000 2005-01-01 0.29369900000000000 2006-01-01 0.32655700000000004 2007-01-01 0.28902200000000000 2008-01-01 0.21209299999999998 2009-01-01 0.08904300000000000 2010-01-01 0.23588000000000000