Year	Percent
1983-01-01	12.4586000000000000
1984-01-01	11.0764000000000000
1985-01-01	9.5230900000000000
1986-01-01	5.1860800000000005
1987-01-01	4.6324600000000000
1988-01-01	1.9974400000000000
1989-01-01	3.4712000000000000
1990-01-01	3.2412000000000000
1991-01-01	4.4893800000000010
1992-01-01	4.8276600000000000
1993-01-01	8.0380399999999990
1994-01-01	12.4966000000000000
1995-01-01	13.5882000000000000
1996-01-01	15.8864000000000000
1997-01-01	22.7353000000000000
1998-01-01	26.9808000000000000
1999-01-01	41.6234000000000000
2000-01-01	45.0752000000000000
2001-01-01	50.0907000000000000
2002-01-01	54.0970000000000000
2003-01-01	60.2762000000000000
2004-01-01	57.5026000000000000
2005-01-01	58.1007000000000000
2006-01-01	92.0741000000000000
2007-01-01	209.8550000000000000
2008-01-01	137.0800000000000000
2009-01-01	141.9300000000000000
2010-01-01	178.5090000000000100
2011-01-01	125.6700000000000000
2012-01-01	139.5010000000000000
2013-01-01	121.5460000000000000
2014-01-01	115.3050000000000000
2015-01-01	128.6500000000000000
2016-01-01	108.4510000000000100