[[1522461600, 2] ,[1522468800, 1] ,[1522472400, 4] ,[1522476000, 2] ,[1522479600, 3] ,[1522490400, 1] ,[1522497600, 4] ,[1522515600, 1] ,[1522519200, 1] ,[1522522800, 3] ,[1522530000, 1]