[[1544486400, 1]
,[1544490000, 3]
,[1544497200, 1]
,[1544504400, 1]
,[1544515200, 4]
,[1544526000, 2]
,[1544529600, 5]
,[1544540400, 2]
,[1544544000, 3]
,[1544547600, 1]
,[1544551200, 1]
,[1544554800, 3]
,[1544558400, 2]
,[1544565600, 1]
,[1544569200, 1]