Year	Percent
1980-01-01	3.76288000000000040
1981-01-01	4.45295000000000000
1982-01-01	6.93006000000000100
1983-01-01	1.02092000000000000
1984-01-01	0.85138300000000000
1985-01-01	0.72162700000000000
1986-01-01	0.55806600000000000
1987-01-01	0.16561099999999998
1988-01-01	0.12908499999999998
1989-01-01	0.29456700000000000
1990-01-01	0.00909100000000000
1991-01-01	0.00909100000000000
1992-01-01	5.38256999999999900
1993-01-01	1.33689000000000000
1994-01-01	0.77494800000000000
1995-01-01	0.35102500000000000
1996-01-01	0.17053100000000000
1997-01-01	0.10142300000000000
1998-01-01	0.12116300000000000
1999-01-01	0.18374100000000002
2000-01-01	0.31312500000000000
2001-01-01	0.49597200000000000
2002-01-01	0.86629700000000000
2003-01-01	1.03413000000000000
2004-01-01	1.10753000000000000
2005-01-01	1.68470000000000000
2006-01-01	2.87634000000000030
2007-01-01	2.42773000000000000
2008-01-01	3.12442000000000000
2009-01-01	4.59293000000000000
2010-01-01	4.96650000000000000
2011-01-01	5.11501000000000000
2012-01-01	4.68279000000000000
2013-01-01	3.77681000000000000
2014-01-01	3.87719000000000000
2015-01-01	4.30277000000000000
2016-01-01	4.55868000000000100