Year	Percent
1982-01-01	0.06592700000000000
1983-01-01	0.07043200000000001
1984-01-01	0.58329500000000000
1985-01-01	1.45552000000000010
1986-01-01	2.31367999999999970
1987-01-01	3.63496000000000000
1988-01-01	5.67769000000000000
1989-01-01	5.08010000000000000
1990-01-01	3.30841000000000000
1991-01-01	2.13291000000000000
1992-01-01	1.43326000000000000
1993-01-01	3.81806000000000000
1994-01-01	6.74143000000000000
1995-01-01	8.45173000000000000
1996-01-01	8.61700000000000000
1997-01-01	10.08660000000000000
1998-01-01	10.75590000000000000
1999-01-01	8.71108999999999900
2000-01-01	7.68518000000000000
2001-01-01	8.87885000000000000
2002-01-01	8.70653999999999900
2003-01-01	10.79020000000000000
2004-01-01	9.15227000000000000
2005-01-01	8.81926000000000000
2006-01-01	11.55350000000000000
2007-01-01	11.22310000000000000
2008-01-01	11.70900000000000100
2009-01-01	18.18820000000000000
2010-01-01	17.09300000000000000
2011-01-01	14.65410000000000000
2012-01-01	16.34980000000000000
2013-01-01	15.73440000000000000
2014-01-01	11.35630000000000000
2015-01-01	11.35290000000000000
2016-01-01	9.10853000000000000