Year	Percent
1994-01-01	42.2617000000000000
1995-01-01	21.8775000000000000
1996-01-01	8.8333300000000000
1997-01-01	9.7750000000000000
1998-01-01	9.3500000000000000
1999-01-01	9.0525000000000000
2000-01-01	7.7491699999999994
2001-01-01	9.3766699999999990
2002-01-01	8.8033300000000000
2003-01-01	8.0291700000000000
2004-01-01	5.9000000000000000
2005-01-01	6.5000000000000000
2006-01-01	6.3000000000000000
2007-01-01	4.6000000000000000
2008-01-01	3.3000000000000000
2009-01-01	2.8000000000000000
2010-01-01	2.3000000000000000
2011-01-01	3.1638000000000000
2012-01-01	3.4987500000000000
2013-01-01	3.6039999999999996
2014-01-01	3.9573699999999996
2015-01-01	4.2193600000000000
2016-01-01	3.9259300000000000