Year	Percent
1983-01-01	3.9880500000000000
1984-01-01	1.1372500000000000
1985-01-01	1.8712300000000000
1986-01-01	0.6993980000000000
1987-01-01	1.3310899999999999
1988-01-01	0.5849770000000001
1989-01-01	0.5849770000000001
1990-01-01	7.2072500000000000
1991-01-01	15.8809999999999980
1992-01-01	0.7675230000000000
1993-01-01	2.7463700000000000
1994-01-01	0.5416670000000000
1995-01-01	0.5416670000000000
1996-01-01	0.5416670000000000
1997-01-01	37.7694000000000000
1998-01-01	0.4725250000000000
1999-01-01	0.4465420000000000
2000-01-01	0.2626270000000000
2001-01-01	9.4702100000000000
2002-01-01	0.3090500000000000
2003-01-01	4.1367300000000000
2004-01-01	0.5502070000000000
2005-01-01	1.3970100000000000
2006-01-01	0.8489860000000000
2007-01-01	0.3875310000000000
2008-01-01	22.5284000000000000
2009-01-01	76.9537000000000000
2010-01-01	22.1684000000000000
2011-01-01	26.5886000000000000
2012-01-01	18.3777000000000000
2013-01-01	20.2196000000000000
2014-01-01	17.8362000000000000
2015-01-01	18.1523000000000000
2016-01-01	18.3949000000000000