Year	Percent
1996-01-01	66.04460000000000
1997-01-01	75.61280000000000
1998-01-01	72.97020000000000
1999-01-01	81.38370000000000
2000-01-01	81.32840000000000
2001-01-01	81.93890000000000
2002-01-01	75.66550000000000
2003-01-01	100.00000000000000
2004-01-01	88.45700000000001
2005-01-01	66.66199999999999
2006-01-01	64.05860000000000
2007-01-01	64.84120000000000
2008-01-01	73.14850000000000
2009-01-01	72.16160000000000
2010-01-01	67.87920000000000
2011-01-01	62.84240000000000
2012-01-01	73.18430000000000
2013-01-01	74.79899999999999
2014-01-01	73.70310000000000
2015-01-01	69.36800000000000
2016-01-01	66.43900000000000