item_id,timestamp,target_value
5,2020-01-01 03:50:33,14
5,2020-02-01 03:53:14,14
5,2020-03-01 03:55:18,16
5,2020-04-01 04:00:30,17
5,2020-05-01 06:26:10,14
1,2020-06-01 08:30:42,16
5,2020-07-01 12:28:58,14
7,2020-08-01 14:00:28,23
7,2020-09-01 15:15:18,23
5,2020-10-01 16:25:23,14
7,2020-11-01 16:45:05,14
5,2020-12-01 18:27:56,14