Year	Percent
2002-01-01	3.3930300000000004
2003-01-01	6.0241000000000000
2004-01-01	4.9875300000000005
2005-01-01	5.4970800000000000
2006-01-01	4.0316199999999990
2007-01-01	7.1334200000000000
2008-01-01	7.1334200000000000
2009-01-01	7.1334200000000000
2010-01-01	7.1334200000000000
2011-01-01	6.3906400000000000
2012-01-01	6.5897900000000000
2013-01-01	8.6952600000000010
2014-01-01	8.0597900000000000
2015-01-01	7.6873000000000000
2016-01-01	7.8058600000000010