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["2015-02-18T22:00:00.000000000",null,277,0.481104]
["2015-02-18T22:15:00.000000000",null,279,1019.0]
["2015-02-18T22:30:00.000000000",null,279,1019.0]
["2015-02-18T22:45:00.000000000",null,278,6.251348]
["2015-02-18T23:15:00.000000000",null,278,6.235511]
["2015-02-18T23:45:00.000000000",null,277,0.4674052]