Year	Percent
2008-01-01	4.6985199999999990
2009-01-01	8.7510300000000000
2010-01-01	4.1055500000000000
2011-01-01	3.4205200000000000
2012-01-01	3.3835699999999997
2013-01-01	0.3652550000000000
2014-01-01	0.7078540000000000
2015-01-01	0.2081120000000000
2016-01-01	0.1909230000000000