Year	Percent Change From Preceding Period
2011-01-01	-34.0117860048522
2012-01-01	125.6811918733480
2013-01-01	45.3630547479797
2014-01-01	49.8293102934564
2015-01-01	51.1542515438117
2016-01-01	221.5357094693290
2017-01-01	32.9077121711978