Year	Index
1996-01-01	0.23870700000000000
1997-01-01	0.22099499999999997
1998-01-01	0.18854000000000000
1999-01-01	0.18139000000000000
2000-01-01	0.21290500000000000
2001-01-01	0.20481000000000000
2002-01-01	0.13913800000000000
2003-01-01	0.23335000000000000
2004-01-01	0.29852600000000000
2005-01-01	0.34221500000000000
2006-01-01	0.26041700000000000
2007-01-01	0.22710000000000000
2008-01-01	0.18185500000000000
2009-01-01	0.27714300000000000
2010-01-01	0.37081300000000000