Year	Percent
1975-01-01	0.539847000000000100
1976-01-01	1.435500000000000000
1977-01-01	1.317760000000000000
1978-01-01	2.839690000000000000
1979-01-01	1.791540000000000100
1980-01-01	0.004565000000000000
1981-01-01	0.004565000000000000
1982-01-01	0.600876000000000100
1983-01-01	0.815350000000000000
1984-01-01	0.311142000000000030
1985-01-01	0.082342000000000000
1986-01-01	1.859390000000000000
1987-01-01	1.761750000000000000
1988-01-01	1.886029999999999900
1989-01-01	2.395860000000000000
1990-01-01	0.568032000000000000
1991-01-01	0.369905000000000040
1992-01-01	0.743314000000000000
1993-01-01	0.917721999999999900
1994-01-01	1.472140000000000000
1995-01-01	1.756460000000000000
1996-01-01	1.161600000000000000
1997-01-01	0.654521000000000000
1998-01-01	1.786430000000000000
1999-01-01	1.365220000000000000
2000-01-01	0.065994000000000010
2001-01-01	0.563623000000000000
2002-01-01	0.676060999999999900
2003-01-01	0.180003000000000000
2004-01-01	0.041302000000000000
2005-01-01	0.018119999999999997
2006-01-01	0.003563000000000000
2007-01-01	0.012714000000000000
2008-01-01	0.027076999999999997
2009-01-01	0.427048999999999960
2010-01-01	0.664388000000000000
2011-01-01	0.296013000000000000
2012-01-01	0.160346000000000020
2013-01-01	0.160476000000000000
2014-01-01	0.298774000000000000
2015-01-01	1.573440000000000000
2016-01-01	2.763460000000000000