Year	Percent
1983-01-01	2.1165300000000000
1984-01-01	2.1165300000000000
1985-01-01	2.1165300000000000
1986-01-01	2.1165300000000000
1987-01-01	2.1165300000000000
1988-01-01	2.1165300000000000
1989-01-01	0.9944209999999999
1990-01-01	1.7322300000000000
1991-01-01	1.5241799999999999
1992-01-01	1.9614700000000000
1993-01-01	2.8884800000000000
1994-01-01	1.8311099999999998
1995-01-01	2.7902299999999998
1996-01-01	3.4142300000000003
1997-01-01	2.9121799999999998
1998-01-01	4.6152400000000000
1999-01-01	4.8915200000000000
2000-01-01	4.2422699999999995
2001-01-01	21.8121000000000000
2002-01-01	16.1789000000000000
2003-01-01	26.3278000000000000
2004-01-01	33.6640000000000000
2005-01-01	30.8589000000000000
2006-01-01	23.4891000000000000
2007-01-01	23.5498000000000000
2008-01-01	34.7326000000000000
2009-01-01	41.8712000000000000
2010-01-01	23.6075000000000000
2011-01-01	25.6278000000000000
2012-01-01	24.0829000000000000
2013-01-01	20.2938000000000000
2014-01-01	22.6109000000000000
2015-01-01	23.9655000000000000
2016-01-01	19.2049000000000000