preaggregage_snapshot.json

{ "_id" : 
    { "year" : 2013, "month" : 3 }, 
    "value" : 
        { "next_day_air" : 30, 
          "second_day" : 83, 
          "three_day_select" : 7, 
          "ground" : 27, 
          "fedex_ground" : 51, 
          "priority_overnight" : 0, 
          "fedex_express_saver" : 0, 
          "fedex_2_day" : 0, 
          "total_price_cents" : 0, 
          "zone_2" : 10, 
          "zone_3" : 10, 
          "zone_4" : 12, 
          "zone_5" : 16, 
          "zone_6" : 158, 
          "zone_7" : 1, 
          "zone_8" : 0, 
          "zone_9" : 0, 
          "zone_10" : 0, 
          "zone_14" : 0, 
          "zone_17" : 0, 
          "zone_22" : 0, 
          "zone_23" : 0, 
          "zone_25" : 0, 
          "zone_92" : 0, 
          "zone_96" : 0, 
        }
    }
}