Year	Percent
1983-01-01	0.058330999999999994
1984-01-01	0.107100000000000000
1985-01-01	0.302481000000000000
1986-01-01	0.103496000000000000
1987-01-01	0.329048000000000000
1988-01-01	0.547606000000000000
1989-01-01	1.102500000000000000
1990-01-01	2.235150000000000000
1991-01-01	2.351790000000000300
1992-01-01	3.829380000000000500
1993-01-01	3.783080000000000400
1994-01-01	1.103640000000000000
1995-01-01	1.344270000000000000
1996-01-01	3.881300000000000000
1997-01-01	2.178870000000000000
1998-01-01	1.330870000000000000
1999-01-01	8.377189999999999000
2000-01-01	5.790220000000000000
2001-01-01	4.209430000000000000
2002-01-01	4.164050000000000000
2003-01-01	2.938770000000000000
2004-01-01	1.694570000000000100
2005-01-01	0.681668000000000000
2006-01-01	0.844824000000000000
2007-01-01	1.580479999999999900
2008-01-01	0.809572000000000100
2009-01-01	1.451380000000000000
2010-01-01	0.942229999999999900
2011-01-01	0.455217000000000000
2012-01-01	0.808934000000000000
2013-01-01	0.862410000000000000
2014-01-01	0.734780000000000000
2015-01-01	7.533180000000001000
2016-01-01	7.518439999999999000