График частотности: случаев

[{"date": "2021-07-14", "qty": 4}, {"date": "2021-07-16", "qty": 3}, {"date": "2021-07-18", "qty": 4}, {"date": "2021-07-19", "qty": 4}, {"date": "2021-07-20", "qty": 3}, {"date": "2021-07-22", "qty": 3}, {"date": "2021-08-28", "qty": 3}, {"date": "2021-09-03", "qty": 3}, {"date": "2021-09-19", "qty": 3}, {"date": "2021-09-26", "qty": 4}, {"date": "2021-10-16", "qty": 3}, {"date": "2021-11-01", "qty": 3}, {"date": "2021-12-08", "qty": 3}, {"date": "2021-12-28", "qty": 4}, {"date": "2022-01-11", "qty": 4}, {"date": "2022-01-17", "qty": 3}, {"date": "2022-01-21", "qty": 4}, {"date": "2023-12-05", "qty": 3}, {"date": "2024-04-10", "qty": 3}, {"date": "2024-04-20", "qty": 4}, {"date": "2024-06-17", "qty": 3}, {"date": "2024-07-08", "qty": 3}, {"date": "2025-12-12", "qty": 4}, {"date": "2025-12-13", "qty": 4}, {"date": "2025-12-14", "qty": 3}, {"date": "2025-12-15", "qty": 3}, {"date": "2025-12-26", "qty": 3}, {"date": "2025-12-27", "qty": 4}, {"date": "2025-12-28", "qty": 3}, {"date": "2026-02-26", "qty": 3}]