[[1546387200, 3] ,[1546390800, 3] ,[1546394400, 3] ,[1546398000, 1] ,[1546401600, 4] ,[1546405200, 1] ,[1546408800, 1] ,[1546426800, 2] ,[1546430400, 1] ,[1546434000, 2] ,[1546441200, 5] ,[1546444800, 1] ,[1546448400, 7] ,[1546452000, 2] ,[1546455600, 5] ,[1546459200, 1]