Year	Percent
1982-01-01	3.22333000000000000
1983-01-01	2.01917000000000000
1984-01-01	0.99000000000000000
1985-01-01	1.99000000000000000
1986-01-01	1.96000000000000000
1987-01-01	2.23500000000000000
1988-01-01	0.57333300000000000
1989-01-01	0.57333300000000000
1990-01-01	0.57333300000000000
1991-01-01	0.19583299999999998
1992-01-01	2.30083000000000000
1993-01-01	2.90250000000000000
1994-01-01	1.87500000000000000
1995-01-01	4.19750000000000000
1996-01-01	3.63333000000000040
1997-01-01	3.46583000000000040
1998-01-01	3.37667000000000000
1999-01-01	2.66000000000000000
2000-01-01	1.28500000000000000
2001-01-01	2.62167000000000000
2002-01-01	3.50167000000000000
2003-01-01	3.09917000000000000
2004-01-01	2.98500000000000000
2005-01-01	2.59917000000000000
2006-01-01	1.63167000000000020
2007-01-01	1.02000000000000000
2008-01-01	3.18250000000000000
2009-01-01	2.67083000000000000
2010-01-01	2.65333000000000000
2011-01-01	2.68833000000000000
2012-01-01	2.65833000000000000
2013-01-01	2.65917000000000000
2014-01-01	2.67000000000000000
2015-01-01	2.86083000000000000
2016-01-01	2.85667000000000030