График частотности: верующих

[{"date": "2015-03-29", "qty": 3}, {"date": "2015-04-02", "qty": 3}, {"date": "2015-07-07", "qty": 7}, {"date": "2015-08-30", "qty": 3}, {"date": "2015-12-22", "qty": 3}, {"date": "2016-03-14", "qty": 3}, {"date": "2016-04-29", "qty": 3}, {"date": "2017-04-09", "qty": 4}, {"date": "2017-05-05", "qty": 3}, {"date": "2017-05-06", "qty": 3}, {"date": "2017-05-07", "qty": 3}, {"date": "2017-05-08", "qty": 3}, {"date": "2017-05-09", "qty": 3}, {"date": "2017-05-10", "qty": 3}, {"date": "2017-05-11", "qty": 3}, {"date": "2017-05-12", "qty": 3}, {"date": "2017-05-13", "qty": 3}, {"date": "2017-05-14", "qty": 3}, {"date": "2017-05-21", "qty": 4}, {"date": "2017-06-19", "qty": 4}, {"date": "2017-09-29", "qty": 3}, {"date": "2017-09-30", "qty": 3}, {"date": "2017-10-01", "qty": 3}, {"date": "2017-10-02", "qty": 3}, {"date": "2018-07-28", "qty": 3}, {"date": "2019-05-26", "qty": 3}, {"date": "2020-11-06", "qty": 3}, {"date": "2020-11-07", "qty": 3}, {"date": "2020-11-08", "qty": 3}, {"date": "2021-05-02", "qty": 3}]