График частотности: северном

[{"date": "2011-09-16", "qty": 6}, {"date": "2011-11-08", "qty": 3}, {"date": "2011-11-29", "qty": 3}, {"date": "2011-11-30", "qty": 3}, {"date": "2012-02-21", "qty": 3}, {"date": "2012-03-30", "qty": 3}, {"date": "2012-03-31", "qty": 3}, {"date": "2012-06-16", "qty": 6}, {"date": "2012-06-17", "qty": 6}, {"date": "2012-08-24", "qty": 4}, {"date": "2012-12-06", "qty": 4}, {"date": "2015-10-12", "qty": 3}, {"date": "2015-11-12", "qty": 3}, {"date": "2016-01-03", "qty": 5}, {"date": "2016-10-12", "qty": 6}, {"date": "2017-07-27", "qty": 3}, {"date": "2017-10-27", "qty": 3}, {"date": "2019-03-28", "qty": 3}, {"date": "2022-01-11", "qty": 3}, {"date": "2022-09-27", "qty": 3}, {"date": "2022-09-29", "qty": 3}, {"date": "2023-10-10", "qty": 3}, {"date": "2023-10-11", "qty": 3}, {"date": "2023-12-09", "qty": 3}, {"date": "2024-06-23", "qty": 3}, {"date": "2024-08-15", "qty": 3}, {"date": "2024-08-27", "qty": 3}, {"date": "2024-11-27", "qty": 3}, {"date": "2025-02-01", "qty": 15}, {"date": "2025-11-26", "qty": 3}]