Year	Percent
2000-01-01	15.445000000000000
2001-01-01	15.445000000000000
2002-01-01	15.445000000000000
2003-01-01	15.445000000000000
2004-01-01	25.826800000000000
2005-01-01	41.002300000000000
2006-01-01	41.416000000000004
2007-01-01	41.681700000000000
2008-01-01	25.721600000000000
2009-01-01	37.906200000000000
2010-01-01	20.674100000000000
2011-01-01	23.067800000000000
2012-01-01	25.556300000000000
2013-01-01	22.872600000000000
2014-01-01	24.029900000000000
2015-01-01	20.301500000000000
2016-01-01	23.684400000000000