Year	Percent
1983-01-01	0.6419810000000000
1984-01-01	1.8603200000000000
1985-01-01	1.8603200000000000
1986-01-01	1.8603200000000000
1987-01-01	1.8603200000000000
1988-01-01	9.1650500000000000
1989-01-01	6.8843900000000000
1990-01-01	6.3974500000000000
1991-01-01	6.5698500000000000
1992-01-01	5.8741200000000000
1993-01-01	5.2806900000000000
1994-01-01	3.9493900000000000
1995-01-01	1.0471100000000000
1996-01-01	0.6645840000000001
1997-01-01	0.8750610000000001
1998-01-01	0.8750610000000001
1999-01-01	0.5041120000000000
2000-01-01	0.2360660000000000
2001-01-01	0.2360660000000000
2002-01-01	3.2016400000000003
2003-01-01	5.4127300000000010
2004-01-01	5.6627400000000000
2005-01-01	5.7106100000000000
2006-01-01	6.6085100000000010
2007-01-01	5.7804400000000005
2008-01-01	5.0101500000000000
2009-01-01	5.4263699999999995
2010-01-01	4.9926000000000000
2011-01-01	4.7427300000000000
2012-01-01	11.8949000000000000
2013-01-01	5.4544200000000000
2014-01-01	4.8048300000000000
2015-01-01	3.2334700000000000
2016-01-01	2.7491600000000000