Year	Percent
1983-01-01	1.2832000000000000
1984-01-01	3.0872400000000000
1985-01-01	1.6039100000000000
1986-01-01	2.5450800000000000
1987-01-01	1.6336200000000000
1988-01-01	2.4704400000000000
1989-01-01	2.1637000000000000
1990-01-01	4.7808400000000000
1991-01-01	6.0920100000000000
1992-01-01	15.9706000000000000
1993-01-01	0.5876950000000000
1994-01-01	4.5077000000000000
1995-01-01	7.5510399999999995
1996-01-01	9.3696900000000000
1997-01-01	10.9323000000000000
1998-01-01	13.0135000000000000
1999-01-01	11.7870000000000000
2000-01-01	8.5325000000000000
2001-01-01	4.7707000000000000
2002-01-01	3.9231700000000000
2003-01-01	3.5923900000000000
2004-01-01	2.4630300000000000
2005-01-01	1.2079300000000000
2006-01-01	0.9899290000000001
2007-01-01	1.3621900000000000
2008-01-01	9.3405300000000010
2009-01-01	10.3211000000000000
2010-01-01	10.0495000000000000
2011-01-01	12.7537000000000000
2012-01-01	11.9079000000000000
2013-01-01	12.8246000000000000
2014-01-01	19.5463000000000000
2015-01-01	13.4571000000000000
2016-01-01	15.4259999999999980