График частотности: группировкой

[{"date": "2025-12-27", "qty": 11}, {"date": "2025-12-28", "qty": 3}, {"date": "2025-12-29", "qty": 6}, {"date": "2025-12-30", "qty": 4}, {"date": "2025-12-31", "qty": 3}, {"date": "2026-01-01", "qty": 3}, {"date": "2026-01-16", "qty": 4}, {"date": "2026-01-23", "qty": 3}, {"date": "2026-01-24", "qty": 3}, {"date": "2026-01-25", "qty": 3}, {"date": "2026-03-03", "qty": 3}, {"date": "2026-03-04", "qty": 3}, {"date": "2026-03-05", "qty": 3}, {"date": "2026-03-16", "qty": 5}, {"date": "2026-03-17", "qty": 5}, {"date": "2026-03-18", "qty": 3}, {"date": "2026-03-19", "qty": 3}, {"date": "2026-03-20", "qty": 3}, {"date": "2026-04-24", "qty": 3}, {"date": "2026-04-25", "qty": 3}, {"date": "2026-04-28", "qty": 3}, {"date": "2026-04-29", "qty": 3}, {"date": "2026-04-30", "qty": 3}, {"date": "2026-05-01", "qty": 3}, {"date": "2026-05-02", "qty": 3}, {"date": "2026-05-16", "qty": 3}, {"date": "2026-05-17", "qty": 3}, {"date": "2026-05-25", "qty": 3}, {"date": "2026-05-26", "qty": 3}, {"date": "2026-06-18", "qty": 3}]