Year	Index
1996-01-01	0.32397300000000000
1997-01-01	0.29482500000000000
1998-01-01	0.30741700000000000
1999-01-01	0.36793400000000004
2000-01-01	0.39125100000000000
2001-01-01	0.34766199999999997
2002-01-01	0.39384200000000000
2003-01-01	0.44690600000000000
2004-01-01	0.44072000000000000
2005-01-01	0.41292299999999993
2006-01-01	0.34534100000000000
2007-01-01	0.30971500000000000
2008-01-01	0.29416600000000000
2009-01-01	0.28633500000000000
2010-01-01	0.15357400000000000
2011-01-01	0.29246500000000003
2012-01-01	0.32632100000000000
2013-01-01	0.34532800000000000