График частотности:

[{"date": "2012-12-15", "qty": 3}, {"date": "2014-03-16", "qty": 3}, {"date": "2016-05-17", "qty": 3}, {"date": "2016-05-22", "qty": 7}, {"date": "2016-06-07", "qty": 3}, {"date": "2017-11-06", "qty": 3}, {"date": "2018-03-18", "qty": 3}, {"date": "2018-05-08", "qty": 4}, {"date": "2018-12-07", "qty": 3}, {"date": "2018-12-08", "qty": 4}, {"date": "2018-12-18", "qty": 3}, {"date": "2020-03-18", "qty": 3}, {"date": "2020-03-19", "qty": 4}, {"date": "2020-05-23", "qty": 3}, {"date": "2020-06-25", "qty": 7}, {"date": "2020-06-28", "qty": 7}, {"date": "2020-06-30", "qty": 4}, {"date": "2020-07-01", "qty": 11}, {"date": "2020-08-09", "qty": 3}, {"date": "2023-05-23", "qty": 4}, {"date": "2023-05-24", "qty": 10}, {"date": "2023-05-25", "qty": 4}]