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["2015-07-31T22:00:00.000000000",null,279,1280.0]
["2015-07-31T22:15:00.000000000",null,278,6.074161]
["2015-07-31T22:30:00.000000000",null,279,1280.0]
["2015-07-31T23:00:00.000000000",null,279,1280.0]
["2015-07-31T23:30:00.000000000",null,277,0.4951999]
["2015-07-31T23:45:00.000000000",null,277,0.4765857]