message: tell elasticsearch which format we're sending data
diff: @@ -366,6 +366,7 @@ const getEnvironmentHitsMonthByEnvironmentId = async (
  '@timestamp': {
  gte: `${interested_year_month}||/M`,
  lte: `${interested_year_month}||/M`,
  + format: "strict_year_month"
  },
  },
  },
  