Year	Percent
2009-01-01	3.4190600000000000
2010-01-01	3.8353900000000003
2011-01-01	4.8842000000000000
2012-01-01	6.6729199999999995
2013-01-01	2.2696700000000000
2014-01-01	3.1870300000000000
2015-01-01	8.6831400000000000
2016-01-01	9.6393000000000000