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["2015-02-21T22:15:00.000000000",null,279,1026.0]
["2015-02-21T23:00:00.000000000",null,279,1026.0]
["2015-02-21T23:30:00.000000000",null,279,1026.0]
["2015-02-21T23:45:00.000000000",null,277,0.4838017]