График частотности: создадут

[{"date": "2015-09-10", "qty": 4}, {"date": "2015-12-10", "qty": 3}, {"date": "2016-03-18", "qty": 4}, {"date": "2017-09-12", "qty": 3}, {"date": "2017-11-03", "qty": 3}, {"date": "2017-11-10", "qty": 4}, {"date": "2017-11-11", "qty": 4}, {"date": "2017-11-13", "qty": 3}, {"date": "2018-01-31", "qty": 3}, {"date": "2018-03-04", "qty": 4}, {"date": "2018-03-05", "qty": 5}, {"date": "2018-03-06", "qty": 4}, {"date": "2018-03-07", "qty": 3}, {"date": "2018-04-03", "qty": 3}, {"date": "2018-08-22", "qty": 3}, {"date": "2018-09-24", "qty": 3}, {"date": "2018-10-18", "qty": 3}, {"date": "2018-11-13", "qty": 4}, {"date": "2019-03-27", "qty": 3}, {"date": "2020-06-16", "qty": 3}, {"date": "2020-08-25", "qty": 3}, {"date": "2020-08-26", "qty": 3}, {"date": "2020-12-25", "qty": 4}, {"date": "2021-02-04", "qty": 3}, {"date": "2021-02-19", "qty": 3}, {"date": "2021-03-15", "qty": 4}, {"date": "2021-03-26", "qty": 3}, {"date": "2021-03-27", "qty": 3}, {"date": "2022-06-23", "qty": 3}, {"date": "2023-01-25", "qty": 3}]