График частотности: работает

[{"date": "2025-01-29", "qty": 5}, {"date": "2025-02-09", "qty": 3}, {"date": "2025-03-23", "qty": 3}, {"date": "2025-03-24", "qty": 3}, {"date": "2025-03-25", "qty": 3}, {"date": "2025-04-08", "qty": 3}, {"date": "2025-04-09", "qty": 3}, {"date": "2025-04-20", "qty": 6}, {"date": "2025-04-21", "qty": 3}, {"date": "2025-04-26", "qty": 3}, {"date": "2025-05-15", "qty": 4}, {"date": "2025-06-17", "qty": 4}, {"date": "2025-07-01", "qty": 3}, {"date": "2025-10-01", "qty": 3}, {"date": "2025-10-11", "qty": 4}, {"date": "2025-12-17", "qty": 4}, {"date": "2025-12-18", "qty": 4}, {"date": "2025-12-29", "qty": 3}, {"date": "2026-01-16", "qty": 3}, {"date": "2026-02-22", "qty": 3}, {"date": "2026-02-23", "qty": 3}, {"date": "2026-02-28", "qty": 3}, {"date": "2026-03-25", "qty": 3}, {"date": "2026-03-30", "qty": 3}, {"date": "2026-05-07", "qty": 3}, {"date": "2026-05-17", "qty": 4}, {"date": "2026-05-18", "qty": 3}, {"date": "2026-06-12", "qty": 3}, {"date": "2026-07-17", "qty": 3}, {"date": "2026-07-18", "qty": 3}]