График частотности: застрелил

[{"date": "2015-06-14", "qty": 3}, {"date": "2015-07-29", "qty": 3}, {"date": "2015-10-18", "qty": 3}, {"date": "2015-10-19", "qty": 3}, {"date": "2016-03-21", "qty": 3}, {"date": "2017-04-21", "qty": 6}, {"date": "2017-04-22", "qty": 6}, {"date": "2017-04-23", "qty": 6}, {"date": "2017-05-15", "qty": 6}, {"date": "2017-06-25", "qty": 3}, {"date": "2017-07-15", "qty": 4}, {"date": "2017-07-16", "qty": 4}, {"date": "2017-07-24", "qty": 7}, {"date": "2017-07-25", "qty": 6}, {"date": "2017-07-26", "qty": 5}, {"date": "2017-10-23", "qty": 3}, {"date": "2018-08-01", "qty": 3}, {"date": "2018-11-12", "qty": 3}, {"date": "2018-11-17", "qty": 4}, {"date": "2018-12-25", "qty": 3}, {"date": "2019-08-23", "qty": 3}, {"date": "2020-01-01", "qty": 4}, {"date": "2020-02-09", "qty": 7}, {"date": "2020-05-18", "qty": 7}, {"date": "2021-02-02", "qty": 3}, {"date": "2021-03-01", "qty": 3}, {"date": "2023-09-01", "qty": 3}, {"date": "2023-10-17", "qty": 3}, {"date": "2023-12-09", "qty": 3}, {"date": "2026-07-21", "qty": 3}]