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["2015-04-19T21:45:00.000000000",null,277,0.4528139]
["2015-04-19T22:15:00.000000000",null,279,1118.0]
["2015-04-19T22:45:00.000000000",null,278,6.080042]
["2015-04-19T23:00:00.000000000",null,279,1118.0]
["2015-04-19T23:15:00.000000000",null,278,6.122098]
["2015-04-19T23:45:00.000000000",null,277,0.4786905]