Year	Percent
1976-01-01	0.46951700000000000
1977-01-01	0.67873900000000000
1978-01-01	1.29185000000000000
1979-01-01	1.20034000000000000
1980-01-01	0.98486900000000010
1981-01-01	1.16932000000000010
1982-01-01	1.14174000000000000
1983-01-01	1.21835000000000000
1984-01-01	1.27490000000000000
1985-01-01	1.16067000000000000
1986-01-01	0.68851500000000000
1987-01-01	0.47782600000000003
1988-01-01	0.11670699999999999
1989-01-01	0.09500600000000000
1990-01-01	0.09500600000000000
1991-01-01	0.09500600000000000
1992-01-01	0.09500600000000000
1993-01-01	0.09500600000000000
1994-01-01	0.09500600000000000
1995-01-01	13.05130000000000000
1996-01-01	0.89431600000000000
1997-01-01	0.89404699999999990
1998-01-01	0.87786000000000010
1999-01-01	1.12653999999999990
2000-01-01	1.13750000000000000
2001-01-01	0.82109300000000010
2002-01-01	0.34330200000000000
2003-01-01	1.30608000000000000
2004-01-01	0.91402999999999990
2005-01-01	0.75710200000000000
2006-01-01	0.76776499999999990
2007-01-01	1.67634000000000020
2008-01-01	0.75237300000000000
2009-01-01	0.77504900000000000
2010-01-01	2.14983000000000000
2011-01-01	1.91475999999999980
2012-01-01	3.54038000000000030
2013-01-01	3.90261999999999980
2014-01-01	6.13729000000000000
2015-01-01	7.49799000000000000
2016-01-01	7.47733999999999900