График частотности: bffd]

[{"date": "2023-09-15", "qty": 15}, {"date": "2023-09-16", "qty": 15}, {"date": "2023-09-17", "qty": 15}, {"date": "2023-09-18", "qty": 15}, {"date": "2023-09-20", "qty": 15}, {"date": "2023-09-21", "qty": 15}]