Year	Percent
2006-01-01	3.6973300000000004
2007-01-01	3.3411400000000000
2008-01-01	2.5148000000000000
2009-01-01	5.5383900000000000
2010-01-01	4.3950200000000000
2011-01-01	5.1836500000000000
2012-01-01	5.0644700000000000
2013-01-01	4.2785699999999990
2014-01-01	2.0728500000000000
2015-01-01	7.4183200000000000
2016-01-01	5.9193800000000000