Year	Percent
1983-01-01	0.40574499999999997
1984-01-01	0.62999900000000000
1985-01-01	0.58287100000000000
1986-01-01	0.77195300000000000
1987-01-01	1.53166000000000000
1988-01-01	1.47994000000000000
1989-01-01	2.14888000000000000
1990-01-01	1.37199000000000000
1991-01-01	1.83057000000000000
1992-01-01	1.55017000000000000
1993-01-01	1.82599000000000020
1994-01-01	2.97023000000000000
1995-01-01	2.70575000000000000
1996-01-01	2.24257000000000000
1997-01-01	3.24062000000000030
1998-01-01	3.82011999999999970
1999-01-01	3.52096999999999970
2000-01-01	2.30590000000000000
2001-01-01	2.02988000000000000
2002-01-01	2.86293000000000000
2003-01-01	3.08624000000000000
2004-01-01	2.63347000000000000
2005-01-01	1.97562000000000020
2006-01-01	0.53933700000000000
2007-01-01	0.57519200000000000
2008-01-01	0.49376899999999996
2009-01-01	0.94806499999999990
2010-01-01	0.84863099999999990
2011-01-01	2.31065000000000000
2012-01-01	1.58564000000000000
2013-01-01	0.84151900000000000
2014-01-01	1.05026000000000000
2015-01-01	0.71178700000000000
2016-01-01	0.76887299999999990