Year	Percent
1976-01-01	0.085119000000000000
1977-01-01	0.078132000000000010
1978-01-01	0.072739000000000000
1979-01-01	0.060473000000000000
1980-01-01	0.045027000000000000
1981-01-01	0.090084000000000000
1982-01-01	0.037985000000000005
1983-01-01	0.084403999999999990
1984-01-01	0.240963000000000000
1985-01-01	0.173479000000000000
1986-01-01	0.193359000000000000
1987-01-01	0.270293000000000000
1988-01-01	0.372330000000000000
1989-01-01	0.540392000000000000
1990-01-01	0.976938000000000000
1991-01-01	0.959526000000000000
1992-01-01	0.914889000000000000
1993-01-01	0.944547999999999900
1994-01-01	0.754696000000000000
1995-01-01	0.516343999999999900
1996-01-01	0.454176000000000000
1997-01-01	0.542393000000000000
1998-01-01	0.342231000000000000
1999-01-01	0.349035000000000000
2000-01-01	0.400511000000000000
2001-01-01	0.483584000000000000
2002-01-01	0.703441000000000000
2003-01-01	0.432830000000000000
2004-01-01	0.444255000000000000
2005-01-01	0.393893000000000000
2006-01-01	0.470778000000000000
2007-01-01	0.515873999999999900
2008-01-01	0.679834000000000000
2009-01-01	0.726062000000000000
2010-01-01	1.017660000000000000
2011-01-01	1.023620000000000000
2012-01-01	1.069570000000000100
2013-01-01	1.303340000000000000
2014-01-01	1.227539999999999900
2015-01-01	1.232300000000000000
2016-01-01	0.991342000000000100
2017-01-01	0.875902000000000100