Year	Percent
1975-01-01	0.03051200000000000
1976-01-01	0.03126900000000000
1977-01-01	0.15498100000000000
1978-01-01	0.65940300000000000
1979-01-01	1.26350000000000000
1980-01-01	1.32402999999999980
1981-01-01	1.65740999999999980
1982-01-01	1.56332000000000000
1983-01-01	1.20024000000000000
1984-01-01	1.37182000000000000
1985-01-01	1.23280000000000000
1986-01-01	0.77974000000000000
1987-01-01	0.66963000000000010
1988-01-01	0.49521899999999996
1989-01-01	0.40972400000000000
1990-01-01	0.11319200000000000
1991-01-01	0.50811700000000000
1992-01-01	1.05031000000000000
1993-01-01	14.08790000000000000
1994-01-01	14.98490000000000000
1995-01-01	17.03670000000000000
1996-01-01	19.99490000000000000
1997-01-01	22.61330000000000000
1998-01-01	24.50160000000000000
1999-01-01	28.45940000000000000
2000-01-01	30.63120000000000000
2001-01-01	33.56240000000000000
2002-01-01	93.38030000000000000
2003-01-01	74.29830000000000000
2004-01-01	56.61740000000000000
2005-01-01	29.05250000000000000
2006-01-01	26.12820000000000000
2007-01-01	22.04040000000000000
2008-01-01	14.19160000000000000
2009-01-01	15.17370000000000000
2010-01-01	12.04860000000000000
2011-01-01	9.64514000000000000
2012-01-01	9.29993000000000000
2013-01-01	9.46153000000000000
2014-01-01	9.46896000000000100
2015-01-01	8.42518000000000100
2016-01-01	14.97570000000000000