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["2015-04-04T22:00:00.000000000",null,277,0.4730064]
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["2015-04-04T22:30:00.000000000",null,278,6.20099]
["2015-04-04T23:00:00.000000000",null,278,6.102201]
["2015-04-04T23:15:00.000000000",null,278,6.086076]