[[1544313600, 4]
,[1544317200, 1]
,[1544346000, 2]
,[1544353200, 4]
,[1544356800, 3]
,[1544360400, 2]
,[1544371200, 2]
,[1544382000, 6]
,[1544385600, 3]
,[1544389200, 2]
,[1544392800, 1]