Year	Percent
1980-01-01	0.87335200000000000
1981-01-01	1.57145000000000000
1982-01-01	0.68655800000000000
1983-01-01	1.05843000000000000
1984-01-01	1.02034000000000000
1985-01-01	1.04380000000000000
1986-01-01	1.23242000000000000
1987-01-01	0.60224000000000000
1988-01-01	0.44892299999999996
1989-01-01	0.84774500000000010
1990-01-01	0.81221000000000000
1991-01-01	0.77909700000000000
1992-01-01	0.88787500000000000
1993-01-01	0.95820699999999990
1994-01-01	1.32767000000000010
1995-01-01	0.74240100000000000
1996-01-01	0.44790600000000000
1997-01-01	0.34574600000000000
1998-01-01	1.38886000000000000
1999-01-01	2.13939000000000000
2000-01-01	1.55915000000000000
2001-01-01	1.46135000000000000
2002-01-01	1.27177000000000000
2003-01-01	2.49744000000000000
2004-01-01	1.98780000000000000
2005-01-01	0.96566299999999990
2006-01-01	0.77265699999999990
2007-01-01	0.52324200000000000
2008-01-01	3.57273000000000040
2009-01-01	2.10740000000000000
2010-01-01	1.07082000000000000
2011-01-01	2.50207000000000020
2012-01-01	2.31616000000000000
2013-01-01	2.72090000000000000
2014-01-01	2.53797000000000000
2015-01-01	2.16023000000000000
2016-01-01	2.34957000000000000