Year	Percent
2000-01-01	0.0010310000000000000
2001-01-01	0.0013010000000000000
2002-01-01	0.0451630000000000000
2003-01-01	0.0447860000000000000
2004-01-01	0.0392589999999999950
2005-01-01	0.0440000000000000040
2006-01-01	0.0440000000000000040
2007-01-01	0.0390000000000000000
2008-01-01	0.0340000000000000000
2009-01-01	0.0360000000000000040
2010-01-01	0.0390000000000000000
2011-01-01	0.0390000000000000000
2012-01-01	0.0390000000000000000
2013-01-01	0.0078780000000000000
2014-01-01	0.0231150000000000000
2015-01-01	0.0096030000000000000
2016-01-01	0.0020859999999999997