График частотности: туннель

[{"date": "2013-10-13", "qty": 3}, {"date": "2015-07-04", "qty": 3}, {"date": "2015-10-03", "qty": 3}, {"date": "2016-06-29", "qty": 3}, {"date": "2024-01-21", "qty": 3}, {"date": "2024-01-22", "qty": 3}, {"date": "2024-01-23", "qty": 3}, {"date": "2024-01-24", "qty": 3}, {"date": "2024-01-25", "qty": 3}, {"date": "2024-01-26", "qty": 3}, {"date": "2024-01-27", "qty": 3}, {"date": "2024-03-20", "qty": 3}, {"date": "2025-10-10", "qty": 4}, {"date": "2026-08-17", "qty": 4}, {"date": "2026-09-06", "qty": 4}, {"date": "2026-09-10", "qty": 8}]