График частотности: rolls

[{"date": "2011-02-10", "qty": 3}, {"date": "2011-07-21", "qty": 3}, {"date": "2012-07-05", "qty": 3}, {"date": "2015-02-18", "qty": 3}, {"date": "2015-08-05", "qty": 3}, {"date": "2015-09-15", "qty": 3}, {"date": "2016-01-27", "qty": 3}, {"date": "2016-02-29", "qty": 4}, {"date": "2016-03-01", "qty": 4}, {"date": "2018-05-10", "qty": 3}, {"date": "2018-05-11", "qty": 3}, {"date": "2018-05-12", "qty": 3}, {"date": "2018-10-19", "qty": 4}, {"date": "2018-10-20", "qty": 4}, {"date": "2018-10-21", "qty": 4}, {"date": "2018-10-22", "qty": 4}, {"date": "2020-01-16", "qty": 3}, {"date": "2020-08-03", "qty": 3}, {"date": "2020-08-04", "qty": 4}, {"date": "2022-09-30", "qty": 4}, {"date": "2022-10-01", "qty": 4}, {"date": "2022-10-02", "qty": 4}, {"date": "2024-12-18", "qty": 7}, {"date": "2025-11-21", "qty": 3}, {"date": "2025-12-31", "qty": 3}]