График частотности: боевикам

[{"date": "2011-02-23", "qty": 3}, {"date": "2012-04-12", "qty": 4}, {"date": "2014-09-28", "qty": 3}, {"date": "2015-10-13", "qty": 3}, {"date": "2016-06-04", "qty": 3}, {"date": "2016-08-08", "qty": 3}, {"date": "2016-11-08", "qty": 4}, {"date": "2016-12-11", "qty": 7}, {"date": "2017-08-31", "qty": 4}, {"date": "2017-09-01", "qty": 3}, {"date": "2017-09-02", "qty": 3}, {"date": "2017-09-03", "qty": 3}, {"date": "2018-01-06", "qty": 3}, {"date": "2020-08-09", "qty": 5}, {"date": "2024-03-05", "qty": 3}]