Year	Percent
1996-01-01	99.24950000000000
1997-01-01	100.00000000000000
1998-01-01	100.00000000000000
1999-01-01	98.87410000000000
2000-01-01	98.38490000000000
2001-01-01	96.82030000000000
2002-01-01	97.28390000000000
2003-01-01	97.77610000000000
2004-01-01	94.96470000000000
2005-01-01	93.80920000000000
2006-01-01	93.48490000000000
2007-01-01	92.86830000000000
2008-01-01	91.92050000000000
2009-01-01	89.75030000000000
2010-01-01	89.29080000000000
2011-01-01	89.40930000000000
2012-01-01	87.66370000000000
2013-01-01	86.82560000000000
2014-01-01	87.52410000000000
2015-01-01	82.07700000000001
2016-01-01	81.48760000000000