Year	Percent
1996-01-01	89.34640000000000
1997-01-01	76.88880000000000
1998-01-01	77.55760000000000
1999-01-01	74.82750000000000
2000-01-01	77.75070000000000
2001-01-01	76.47560000000000
2002-01-01	79.74910000000000
2003-01-01	78.82980000000000
2004-01-01	86.07130000000000
2005-01-01	75.93620000000000
2006-01-01	71.42110000000000
2007-01-01	71.86910000000000
2008-01-01	80.43610000000000
2009-01-01	81.41260000000000
2010-01-01	86.80060000000000
2011-01-01	87.97720000000000
2012-01-01	98.22010000000000
2013-01-01	97.95700000000001
2014-01-01	97.91810000000000
2015-01-01	100.00000000000000
2016-01-01	100.00000000000000