Year	Percent
1963-01-01	6.28840900000000000000
1964-01-01	0.00019430000000000000
1965-01-01	7.20618300000000000000
1966-01-01	0.00021760000000000000
1967-01-01	6.41171300000000000000
1968-01-01	0.00015330000000000000
1969-01-01	0.00011800000000000000
1970-01-01	0.00015090000000000000
1971-01-01	0.00013460000000000000
1972-01-01	0.00011240000000000001
1973-01-01	0.00010449999999999999
1974-01-01	0.00012749999999999998
1975-01-01	0.00017880000000000000
1976-01-01	0.00022290000000000000
1977-01-01	0.00026730000000000000
1978-01-01	0.00025820000000000000
1979-01-01	0.00020970000000000000
1980-01-01	0.00007020000000000001
1981-01-01	0.00006809999999999999
1982-01-01	0.00006809999999999999
1983-01-01	0.00006809999999999999
1984-01-01	0.00006809999999999999
1985-01-01	0.00006809999999999999
1986-01-01	0.00006809999999999999
1987-01-01	0.00006809999999999999
1988-01-01	2.28537799999999970000
1989-01-01	8.36673699999999900000
1990-01-01	10.80925000000000000000
1991-01-01	7.88508500000000100000
1992-01-01	4.69341600000000000000
1993-01-01	4.42461900000000000000
1994-01-01	1.50860200000000000000
1995-01-01	0.65316500000000000000
1996-01-01	0.63119080000000000000
1997-01-01	2.97572900000000030000
1998-01-01	2.97572900000000030000
1999-01-01	2.97572900000000030000
2000-01-01	17.45753999999999800000
2001-01-01	1.93914300000000000000
2002-01-01	0.99704989999999990000
2003-01-01	1.02135500000000000000
2004-01-01	2.52450100000000000000
2005-01-01	1.85548600000000000000
2006-01-01	1.31129400000000000000
2007-01-01	1.14128600000000000000
2008-01-01	0.97887940000000000000
2009-01-01	0.67445959999999990000
2010-01-01	0.19381440000000000000
2011-01-01	2.12875500000000000000
2012-01-01	3.83148600000000000000
2013-01-01	3.40063200000000000000
2014-01-01	4.14260700000000000000