График частотности: вход

[{"date": "2010-12-22", "qty": 3}, {"date": "2011-04-26", "qty": 3}, {"date": "2011-07-13", "qty": 3}, {"date": "2012-09-20", "qty": 3}, {"date": "2012-11-26", "qty": 3}, {"date": "2015-11-11", "qty": 4}, {"date": "2015-11-16", "qty": 3}, {"date": "2016-02-17", "qty": 4}, {"date": "2017-05-02", "qty": 3}, {"date": "2017-05-03", "qty": 3}, {"date": "2017-05-04", "qty": 3}, {"date": "2017-05-05", "qty": 3}, {"date": "2017-05-18", "qty": 5}, {"date": "2017-08-17", "qty": 3}, {"date": "2017-08-31", "qty": 3}, {"date": "2017-11-26", "qty": 3}, {"date": "2018-12-15", "qty": 3}, {"date": "2018-12-29", "qty": 3}, {"date": "2020-02-26", "qty": 3}, {"date": "2022-04-17", "qty": 3}, {"date": "2023-12-09", "qty": 3}, {"date": "2023-12-10", "qty": 3}, {"date": "2024-02-06", "qty": 13}, {"date": "2026-04-05", "qty": 3}, {"date": "2026-07-28", "qty": 1}, {"date": "2026-07-29", "qty": 4}]