[[1548190800, 1] ,[1548194400, 1] ,[1548198000, 1] ,[1548208800, 2] ,[1548219600, 1] ,[1548226800, 3] ,[1548234000, 2] ,[1548237600, 2] ,[1548241200, 2] ,[1548244800, 2] ,[1548248400, 3] ,[1548252000, 4] ,[1548255600, 4] ,[1548259200, 11] ,[1548262800, 4] ,[1548266400, 3] ,[1548270000, 3]