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["2015-02-23T22:15:00.000000000",null,278,6.164433]
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["2015-02-23T23:00:00.000000000",null,277,0.4849898]
["2015-02-23T23:15:00.000000000",null,279,1029.0]
["2015-02-23T23:45:00.000000000",null,277,0.4913715]