Year	Percent
1980-01-01	0.0047890000000000
1981-01-01	0.0055000000000000
1982-01-01	0.0136030000000000
1983-01-01	0.0477200000000000
1984-01-01	2.3587200000000000
1985-01-01	3.0802900000000000
1986-01-01	3.2361800000000000
1987-01-01	3.5549800000000005
1988-01-01	4.5742199999999995
1989-01-01	4.0573500000000000
1990-01-01	4.1389500000000000
1991-01-01	3.5321100000000000
1992-01-01	2.7683500000000000
1993-01-01	1.7033400000000000
1994-01-01	2.9846600000000000
1995-01-01	3.2500400000000003
1996-01-01	3.9900000000000000
1997-01-01	3.7158200000000000
1998-01-01	3.5969599999999997
1999-01-01	3.1674000000000000
2000-01-01	0.6775800000000001
2001-01-01	1.2372600000000000
2002-01-01	1.6847599999999998
2003-01-01	1.1843800000000000
2004-01-01	1.7777900000000002
2005-01-01	1.6276500000000000
2006-01-01	1.3959800000000000
2007-01-01	2.9615200000000000
2008-01-01	4.3058800000000000
2009-01-01	3.4354500000000000
2010-01-01	4.7289600000000000
2011-01-01	3.1916800000000000
2012-01-01	2.2766700000000000
2013-01-01	3.6971199999999995
2014-01-01	4.9873400000000006
2015-01-01	6.2827199999999990
2016-01-01	9.0063200000000000