Year	Index
1996-01-01	0.45395000000000000
1997-01-01	0.22594600000000000
1998-01-01	0.27079600000000000
1999-01-01	0.42356000000000005
2000-01-01	0.37133800000000000
2001-01-01	0.44528500000000004
2002-01-01	0.39053499999999997
2003-01-01	0.42346900000000000
2004-01-01	0.49367400000000000
2005-01-01	0.51669200000000000
2006-01-01	0.58711400000000000
2007-01-01	0.59537299999999990
2008-01-01	0.57449300000000000
2009-01-01	0.52975100000000000
2010-01-01	0.55089100000000000
2011-01-01	0.56282900000000000
2012-01-01	0.52012000000000000
2013-01-01	0.47529300000000000