График частотности: флага

[{"date": "2014-10-13", "qty": 5}, {"date": "2014-10-14", "qty": 4}, {"date": "2015-06-14", "qty": 3}, {"date": "2015-10-23", "qty": 3}, {"date": "2015-11-14", "qty": 8}, {"date": "2017-05-02", "qty": 3}, {"date": "2017-08-22", "qty": 9}, {"date": "2017-08-23", "qty": 6}, {"date": "2018-08-22", "qty": 4}, {"date": "2018-08-23", "qty": 6}, {"date": "2019-08-09", "qty": 4}, {"date": "2019-08-22", "qty": 3}, {"date": "2019-08-24", "qty": 9}, {"date": "2019-08-25", "qty": 3}, {"date": "2020-06-01", "qty": 6}, {"date": "2020-06-12", "qty": 3}, {"date": "2020-06-13", "qty": 3}, {"date": "2020-08-22", "qty": 38}, {"date": "2020-08-23", "qty": 17}, {"date": "2021-08-19", "qty": 8}, {"date": "2021-08-20", "qty": 8}, {"date": "2021-08-21", "qty": 3}, {"date": "2021-08-22", "qty": 24}, {"date": "2021-08-23", "qty": 13}, {"date": "2021-08-24", "qty": 4}, {"date": "2021-08-25", "qty": 6}, {"date": "2022-08-22", "qty": 11}, {"date": "2022-08-23", "qty": 5}, {"date": "2022-08-24", "qty": 4}, {"date": "2022-08-31", "qty": 4}]