Year	Percent
2008-01-01	8.9889500000000000
2009-01-01	7.6451800000000000
2010-01-01	3.1470200000000000
2011-01-01	3.3536599999999996
2012-01-01	3.0025600000000000
2013-01-01	1.7132599999999998