Year	Percent
1980-01-01	0.42927000000000000
1981-01-01	0.56791000000000000
1982-01-01	0.65432800000000000
1983-01-01	0.75261899999999990
1984-01-01	0.45676300000000003
1985-01-01	0.38360800000000000
1986-01-01	0.27593000000000000
1987-01-01	0.83775400000000010
1988-01-01	0.99423200000000000
1989-01-01	2.45174000000000000
1990-01-01	4.82736000000000000
1991-01-01	4.56797000000000000
1992-01-01	4.99836999999999950
1993-01-01	6.31185000000000000
1994-01-01	4.25764000000000000
1995-01-01	2.46327000000000000
1996-01-01	2.64725999999999970
1997-01-01	1.96399000000000010
1998-01-01	1.04626000000000000
1999-01-01	1.12545000000000000
2000-01-01	0.58665800000000000
2001-01-01	1.92077000000000000
2002-01-01	1.07172000000000000
2003-01-01	1.97990999999999980
2004-01-01	0.47757100000000000
2005-01-01	0.73115700000000000
2006-01-01	0.68571300000000000
2007-01-01	7.74641000000000100
2008-01-01	5.70182000000000000
2009-01-01	18.40840000000000000
2010-01-01	17.21170000000000000
2011-01-01	16.13980000000000000
2012-01-01	14.79740000000000000
2013-01-01	13.38130000000000000
2014-01-01	14.93260000000000000
2015-01-01	13.67220000000000000
2016-01-01	10.19470000000000000