Year	Percent
1982-01-01	0.8176420000000000
1983-01-01	0.7394130000000000
1984-01-01	0.5666010000000000
1985-01-01	0.6882250000000000
1986-01-01	0.6983720000000000
1987-01-01	1.0049600000000000
1988-01-01	0.8272670000000000
1989-01-01	0.8272670000000000
1990-01-01	0.8272670000000000
1991-01-01	0.8272670000000000
1992-01-01	0.8272670000000000
1993-01-01	0.8272670000000000
1994-01-01	0.8272670000000000
1995-01-01	13.4583000000000000
1996-01-01	3.6049100000000000
1997-01-01	3.6277600000000000
1998-01-01	3.3418099999999997
1999-01-01	3.2386100000000000
2000-01-01	5.0170300000000000
2001-01-01	4.7037500000000000
2002-01-01	19.5745000000000000
2003-01-01	19.3902000000000000
2004-01-01	17.8575000000000000
2005-01-01	12.2625000000000000
2006-01-01	9.1718300000000000
2007-01-01	3.0292200000000000
2008-01-01	2.6291000000000000
2009-01-01	2.8870800000000000
2010-01-01	2.3310200000000000
2011-01-01	1.8955500000000000
2012-01-01	1.7882799999999999
2013-01-01	3.6607000000000000
2014-01-01	9.7108700000000000
2015-01-01	15.3156000000000000
2016-01-01	15.2261000000000000