def getAvgQualities(self, currentDate):
     avgQualities = JSONObject()
     for t in self.avgTypes:
         avgQualities[t] = JSONObject()
         avgQualities[t].values = []
         avgQualities[t].startDate = str(self.getStartDate(currentDate, t))
     for key in self.qoiMetrics:
         self.qoiMetrics[key].getAvgQualities(avgQualities, key)
     return avgQualities