[[1506556800, 1] ,[1506560400, 1] ,[1506564000, 2] ,[1506567600, 3] ,[1506571200, 2] ,[1506582000, 3] ,[1506585600, 2] ,[1506589200, 4] ,[1506592800, 3] ,[1506596400, 2] ,[1506600000, 3] ,[1506607200, 1] ,[1506610800, 4] ,[1506614400, 9] ,[1506618000, 7] ,[1506621600, 8] ,[1506625200, 5] ,[1506628800, 1] ,[1506632400, 2] ,[1506636000, 3]