Year	Percent
2009-01-01	6.800000000000000
2010-01-01	5.204160000000000
2011-01-01	3.918600000000000
2012-01-01	5.436820000000000
2013-01-01	6.952500000000000
2014-01-01	6.752160000000001
2015-01-01	6.594170000000000
2016-01-01	7.186750000000000