Year	Percent
1999-01-01	6.4128099999999995
2000-01-01	14.4140000000000010
2001-01-01	9.9536500000000000
2002-01-01	7.1703399999999995
2003-01-01	4.7617400000000005
2004-01-01	1.2225100000000000
2005-01-01	0.8499720000000000
2006-01-01	0.5586390000000000
2007-01-01	0.2926520000000000
2008-01-01	0.1314660000000000
2009-01-01	0.1314660000000000
2010-01-01	0.1314660000000000
2011-01-01	0.0010000000000000
2012-01-01	0.0005490000000000
2013-01-01	0.0011270000000000
2014-01-01	0.0011270000000000
2015-01-01	0.0010750000000000
2016-01-01	0.0067920000000000