Year	Percent
1982-01-01	0.22475200000000000
1983-01-01	0.19460100000000000
1984-01-01	0.16364500000000000
1985-01-01	0.20681400000000000
1986-01-01	0.24200600000000000
1987-01-01	0.28657800000000000
1988-01-01	0.27186500000000000
1989-01-01	0.23028700000000000
1990-01-01	0.21317700000000000
1991-01-01	0.21358000000000002
1992-01-01	0.21358000000000002
1993-01-01	0.21358000000000002
1994-01-01	0.21358000000000002
1995-01-01	0.21358000000000002
1996-01-01	0.21358000000000002
1997-01-01	0.25959600000000000
1998-01-01	0.26152400000000000
1999-01-01	0.26561799999999997
2000-01-01	0.26561799999999997
2001-01-01	0.26561799999999997
2002-01-01	1.71020000000000000
2003-01-01	1.56821000000000000
2004-01-01	1.35465000000000000
2005-01-01	1.21316000000000000
2006-01-01	1.01521000000000000
2007-01-01	2.10280000000000000
2008-01-01	1.79571000000000000
2009-01-01	2.71917999999999970
2010-01-01	3.99451999999999960
2011-01-01	5.03326000000000000
2012-01-01	5.43535000000000000
2013-01-01	5.11212000000000000
2014-01-01	6.54825000000000000
2015-01-01	8.39655000000000000
2016-01-01	10.07950000000000000