Year	Percent
1982-01-01	1.19773000000000000
1983-01-01	1.08646000000000000
1984-01-01	1.35747000000000020
1985-01-01	1.93183000000000000
1986-01-01	2.91558000000000000
1987-01-01	1.99417000000000000
1988-01-01	3.24812000000000000
1989-01-01	2.23678000000000000
1990-01-01	1.74060000000000000
1991-01-01	1.37446000000000000
1992-01-01	0.95724200000000000
1993-01-01	1.39297000000000000
1994-01-01	1.11150000000000000
1995-01-01	0.65274400000000000
1996-01-01	1.67477000000000000
1997-01-01	3.21625000000000000
1998-01-01	4.32539000000000050
1999-01-01	2.63010999999999970
2000-01-01	3.76133000000000050
2001-01-01	1.54372999999999980
2002-01-01	1.26799000000000000
2003-01-01	0.84875700000000000
2004-01-01	0.86940599999999990
2005-01-01	0.44566400000000006
2006-01-01	0.36535500000000004
2007-01-01	0.19399700000000000
2008-01-01	1.44529000000000000
2009-01-01	0.33436100000000000
2010-01-01	0.17654900000000000
2011-01-01	0.14004200000000000
2012-01-01	0.17244100000000000
2013-01-01	0.15767500000000000
2014-01-01	0.15527500000000000
2015-01-01	0.19075000000000000
2016-01-01	0.13084700000000000
2017-01-01	0.14277000000000000