Year	Percent
1983-01-01	0.34928400000000004
1984-01-01	2.96188000000000000
1985-01-01	5.05856000000000000
1986-01-01	6.20076000000000000
1987-01-01	6.38891000000000000
1988-01-01	4.32471000000000000
1989-01-01	3.69909000000000000
1990-01-01	3.32899999999999970
1991-01-01	3.45244000000000000
1992-01-01	0.36325200000000000
1993-01-01	2.68402000000000030
1994-01-01	3.63021000000000000
1995-01-01	3.31133000000000030
1996-01-01	3.80104000000000000
1997-01-01	3.39759000000000000
1998-01-01	3.19524000000000000
1999-01-01	3.08684000000000000
2000-01-01	3.03888000000000000
2001-01-01	3.24456000000000000
2002-01-01	3.28213000000000040
2003-01-01	3.04846000000000000
2004-01-01	2.94660000000000000
2005-01-01	2.84515000000000000
2006-01-01	2.45432000000000000
2007-01-01	2.23921000000000000
2008-01-01	2.25422000000000000
2009-01-01	2.21620000000000000
2010-01-01	2.09800000000000030
2011-01-01	2.04805000000000000
2012-01-01	2.07330999999999980
2013-01-01	2.02338000000000000
2014-01-01	2.08302000000000000
2015-01-01	1.94857000000000010
2016-01-01	0.07190400000000000
2017-01-01	1.87669000000000020