[[1556928000, 1] ,[1556931600, 0] ,[1556935200, 0] ,[1556938800, 1] ,[1556942400, 0] ,[1556946000, 0] ,[1556949600, 2] ,[1556953200, 0] ,[1556956800, 0] ,[1556960400, 0] ,[1556964000, 1] ,[1556967600, 1] ,[1556971200, 3] ,[1556974800, 2] ,[1556978400, 4] ,[1556982000, 4] ,[1556985600, 3] ,[1556989200, 1] ,[1556992800, 4] ,[1556996400, 4]