Year	Percent
1990-01-01	0.50445000000000000
1991-01-01	0.35796700000000000
1992-01-01	0.48363300000000000
1993-01-01	0.50376300000000000
1994-01-01	0.48661099999999996
1995-01-01	0.24935300000000002
1996-01-01	0.03461600000000000
1997-01-01	0.00889000000000000
1998-01-01	0.00965500000000000
1999-01-01	0.00856400000000000
2000-01-01	0.00856400000000000
2001-01-01	0.07895900000000000
2002-01-01	0.08785800000000000
2003-01-01	0.17191700000000001
2004-01-01	1.16866000000000000
2005-01-01	2.50488000000000000
2006-01-01	1.70292999999999980
2007-01-01	2.02359000000000000
2008-01-01	1.47882999999999990
2009-01-01	3.30428000000000030
2010-01-01	2.43011000000000000
2011-01-01	3.75351999999999950
2012-01-01	4.77946000000000000
2013-01-01	3.94590000000000000
2014-01-01	5.60310000000000000
2015-01-01	11.37460000000000000
2016-01-01	11.51550000000000000