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["2015-02-15T21:30:00.000000000",null,277,0.4657456]
["2015-02-15T21:45:00.000000000",null,279,1015.0]
["2015-02-15T22:00:00.000000000",null,278,6.219911]
["2015-02-15T22:30:00.000000000",null,277,0.474672]
["2015-02-15T23:00:00.000000000",null,279,1015.0]
["2015-02-15T23:30:00.000000000",null,279,1015.0]