Year	Percent
1980-01-01	0.051907000000000000
1981-01-01	0.029914000000000000
1982-01-01	0.013065000000000000
1983-01-01	0.013065000000000000
1984-01-01	0.048830000000000000
1985-01-01	0.067923000000000000
1986-01-01	0.064830000000000000
1987-01-01	0.060651000000000000
1988-01-01	0.037368000000000000
1989-01-01	0.034752000000000000
1990-01-01	0.034752000000000000
1991-01-01	0.034752000000000000
1992-01-01	0.034752000000000000
1993-01-01	0.002895000000000000
1994-01-01	0.003062000000000000
1995-01-01	0.002837000000000000
1996-01-01	0.014028000000000000
1997-01-01	0.047662000000000000
1998-01-01	0.044251000000000000
1999-01-01	0.039444000000000000
2000-01-01	0.034266000000000005
2001-01-01	0.031444000000000000
2002-01-01	0.027726000000000000
2003-01-01	0.026344000000000000
2004-01-01	0.029700000000000000
2005-01-01	0.028125000000000000
2006-01-01	0.027908999999999996
2007-01-01	0.027472000000000003
2008-01-01	0.030483999999999997
2009-01-01	0.030840000000000000
2010-01-01	0.029897000000000003
2011-01-01	0.029084000000000000
2012-01-01	0.028275000000000000
2013-01-01	0.027548000000000003
2014-01-01	0.026131000000000000
2015-01-01	0.026699000000000000
2016-01-01	0.025290000000000000