Year	Percent
1983-01-01	0.01233800000000000
1984-01-01	0.06246000000000000
1985-01-01	0.07152100000000000
1986-01-01	0.08880100000000000
1987-01-01	0.11326300000000002
1988-01-01	0.11743699999999999
1989-01-01	0.17681000000000000
1990-01-01	0.15639600000000000
1991-01-01	0.11147100000000000
1992-01-01	0.17886900000000000
1993-01-01	0.21897800000000003
1994-01-01	0.25382700000000000
1995-01-01	0.32206700000000000
1996-01-01	0.35009100000000000
1997-01-01	0.33603900000000000
1998-01-01	1.00389000000000000
1999-01-01	0.79213500000000000
2000-01-01	0.72124100000000000
2001-01-01	0.65192900000000000
2002-01-01	0.64341900000000000
2003-01-01	0.63410700000000000
2004-01-01	0.72665400000000000
2005-01-01	1.89584000000000020
2006-01-01	1.56962000000000000
2007-01-01	1.42852999999999990
2008-01-01	1.33160000000000000
2009-01-01	1.25892000000000000
2010-01-01	0.91591900000000000
2011-01-01	0.77538699999999990
2012-01-01	0.78575400000000000
2013-01-01	0.83443500000000000
2014-01-01	0.95992600000000010
2015-01-01	1.12204000000000000
2016-01-01	0.95538700000000010
2017-01-01	0.88743800000000000