Year	Percent
1998-01-01	42.3000
1999-01-01	55.5000
2000-01-01	55.5000
2001-01-01	79.0000
2002-01-01	71.5000
2003-01-01	50.3000
2004-01-01	70.6000
2005-01-01	73.6000
2006-01-01	58.0000
2007-01-01	60.4000
2008-01-01	60.4000
2009-01-01	47.1000
2010-01-01	0.0000
2011-01-01	0.0000
2012-01-01	0.0000
2013-01-01	0.0000
2014-01-01	44.3041
2015-01-01	43.8654
2016-01-01	46.4236