Year	Percent
1985-01-01	3.1351800000000000
1986-01-01	3.1351800000000000
1987-01-01	3.1351800000000000
1988-01-01	3.1351800000000000
1989-01-01	3.1351800000000000
1990-01-01	3.1351800000000000
1991-01-01	3.1351800000000000
1992-01-01	2.0796200000000002
1993-01-01	2.0796200000000002
1994-01-01	2.0796200000000002
1995-01-01	1.7863099999999998
1996-01-01	1.4954900000000000
1997-01-01	1.4954900000000000
1998-01-01	1.5234900000000000
1999-01-01	27.4732000000000000
2000-01-01	10.3686000000000000
2001-01-01	1.5870500000000000
2002-01-01	6.9254000000000000
2003-01-01	5.5413300000000000
2004-01-01	5.5413300000000000
2005-01-01	5.5413300000000000
2006-01-01	3.6850099999999997
2007-01-01	15.2954000000000000
2008-01-01	1.4375200000000001
2009-01-01	1.4375200000000001
2010-01-01	1.4375200000000001
2011-01-01	1.4375200000000001
2012-01-01	1.6260200000000000
2013-01-01	1.3550500000000000
2014-01-01	0.2511320000000000
2015-01-01	16.3051000000000000
2016-01-01	16.1913000000000000