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["2010-06-21T23:00:00.000000000",null,3024,206.7]
["2010-06-21T23:15:00.000000000",null,3025,0.4]
["2010-06-21T23:30:00.000000000",null,3025,0.4]
["2010-06-21T23:45:00.000000000",null,3024,206.0]