Year	Index
1996-01-01	0.35552900000000000
1997-01-01	0.12632800000000000
1998-01-01	0.18155100000000000
1999-01-01	0.18226099999999998
2000-01-01	0.27183800000000000
2001-01-01	0.18360600000000000
2002-01-01	0.35885800000000000
2003-01-01	0.20740900000000000
2004-01-01	0.33617100000000000
2005-01-01	0.32611100000000004
2006-01-01	0.36363500000000000
2007-01-01	0.30673700000000000
2008-01-01	0.34381999999999996
2009-01-01	0.32811100000000000
2010-01-01	0.35623600000000000
2011-01-01	0.20792199999999997
2012-01-01	0.18123399999999998
2013-01-01	0.40475000000000000