Year	Percent
2011-01-01	6.4168199999999995
2012-01-01	6.4168199999999995
2013-01-01	6.4168199999999995
2014-01-01	6.5958900000000000
2015-01-01	6.5958900000000000
2016-01-01	6.5958900000000000
2017-01-01	9.0171000000000000