[[1550350800, 1]
,[1550358000, 1]
,[1550361600, 1]
,[1550365200, 1]
,[1550368800, 4]
,[1550372400, 2]
,[1550397600, 1]
,[1550401200, 3]
,[1550408400, 1]
,[1550412000, 1]
,[1550415600, 1]
,[1550419200, 1]