Year	Percent
1983-01-01	14.8633000000000000
1984-01-01	15.0580000000000000
1985-01-01	17.4371000000000000
1986-01-01	13.7754000000000000
1987-01-01	12.0419000000000000
1988-01-01	8.8310800000000000
1989-01-01	6.2409500000000000
1990-01-01	9.7294900000000000
1991-01-01	1.5046899999999999
1992-01-01	1.7060400000000002
1993-01-01	1.1811200000000002
1994-01-01	1.3402200000000000
1995-01-01	1.2116500000000000
1996-01-01	1.6338800000000000
1997-01-01	6.1977800000000010
1998-01-01	1.4929400000000000
1999-01-01	2.6261099999999997
2000-01-01	2.6672800000000000
2001-01-01	1.8078400000000001
2002-01-01	2.0982600000000000
2003-01-01	2.7266400000000000
2004-01-01	3.3828000000000000
2005-01-01	5.2240900000000000
2006-01-01	0.8500780000000001
2007-01-01	5.8829699999999990
2008-01-01	1.9617400000000000
2009-01-01	2.6310300000000000
2010-01-01	1.5738200000000000
2011-01-01	2.0751500000000000
2012-01-01	2.1752300000000000
2013-01-01	1.4615500000000000
2014-01-01	1.2101500000000000
2015-01-01	1.1444200000000000
2016-01-01	2.8363600000000000