Year	Percent
1977-01-01	0.3875380000000000000
1978-01-01	0.1618510000000000000
1979-01-01	0.1618510000000000000
1980-01-01	0.0047510000000000000
1981-01-01	0.0015890000000000001
1982-01-01	0.0048800000000000000
1983-01-01	0.0031870000000000000
1984-01-01	0.0033159999999999995
1985-01-01	0.0024640000000000000
1986-01-01	0.0019130000000000000
1987-01-01	0.0018010000000000000
1988-01-01	0.0017219999999999998
1989-01-01	0.0017780000000000000
1990-01-01	0.0056090000000000000
1991-01-01	0.0102940000000000000
1992-01-01	0.0106489999999999990
1993-01-01	0.0124269999999999990
1994-01-01	0.0124269999999999990
1995-01-01	0.0124269999999999990
1996-01-01	0.0124269999999999990
1997-01-01	0.0124269999999999990
1998-01-01	0.0124269999999999990
1999-01-01	0.0124269999999999990
2000-01-01	0.0124269999999999990
2001-01-01	0.0124269999999999990
2002-01-01	0.0124269999999999990
2003-01-01	0.0124269999999999990
2004-01-01	0.0124269999999999990
2005-01-01	0.0124269999999999990
2006-01-01	0.0124269999999999990
2007-01-01	0.0124269999999999990
2008-01-01	0.0124269999999999990
2009-01-01	0.0124269999999999990
2010-01-01	0.0124269999999999990
2011-01-01	0.0124269999999999990
2012-01-01	0.0124269999999999990
2013-01-01	0.0124269999999999990
2014-01-01	0.0124269999999999990
2015-01-01	0.0124269999999999990
2016-01-01	0.0124269999999999990
2017-01-01	0.0000000000000000000