Year	Percent
1996-01-01	100.000000000000000
1997-01-01	100.000000000000000
1998-01-01	100.000000000000000
1999-01-01	92.155700000000000
2000-01-01	93.291400000000000
2001-01-01	91.698100000000000
2002-01-01	92.779000000000000
2003-01-01	92.004500000000000
2004-01-01	92.468900000000000
2005-01-01	86.182900000000000
2006-01-01	83.521800000000000
2007-01-01	80.766800000000000
2008-01-01	60.968999999999994
2009-01-01	66.246300000000000
2010-01-01	72.028900000000000
2011-01-01	71.456400000000000
2012-01-01	68.398400000000000
2013-01-01	69.886100000000000
2014-01-01	100.000000000000000
2015-01-01	91.212000000000000