Year	Percent
1996-01-01	79.290100000000000
1997-01-01	77.615000000000000
1998-01-01	80.378400000000000
1999-01-01	87.341800000000000
2000-01-01	100.000000000000000
2001-01-01	100.000000000000000
2002-01-01	100.000000000000000
2003-01-01	98.729000000000000
2004-01-01	41.498900000000000
2005-01-01	41.218600000000000
2006-01-01	39.609800000000000
2007-01-01	47.189500000000000
2008-01-01	47.508100000000000
2009-01-01	46.663000000000004
2010-01-01	47.609400000000000
2011-01-01	40.584100000000000
2012-01-01	41.309900000000000
2013-01-01	43.374200000000000
2014-01-01	45.155600000000000
2015-01-01	46.009500000000000
2016-01-01	43.717800000000000