Year	Index
1996-01-01	0.24090100000000003
1997-01-01	0.25231100000000000
1998-01-01	0.30637200000000000
1999-01-01	0.38881300000000000
2000-01-01	0.38609699999999997
2001-01-01	0.29884900000000000
2002-01-01	0.37025300000000000
2003-01-01	0.46056199999999997
2004-01-01	0.51498500000000000
2005-01-01	0.50429099999999990
2006-01-01	0.42397500000000000
2007-01-01	0.35199200000000000
2008-01-01	0.22648600000000002
2009-01-01	0.32037400000000000
2010-01-01	0.33839100000000000