График частотности: аркадий

[{"date": "2013-04-25", "qty": 4}, {"date": "2013-11-13", "qty": 3}, {"date": "2013-11-21", "qty": 3}, {"date": "2014-02-20", "qty": 3}, {"date": "2014-02-27", "qty": 3}, {"date": "2014-03-04", "qty": 3}, {"date": "2014-03-05", "qty": 3}, {"date": "2014-03-25", "qty": 3}, {"date": "2014-03-26", "qty": 4}, {"date": "2014-05-28", "qty": 3}, {"date": "2014-09-20", "qty": 4}, {"date": "2014-09-22", "qty": 3}, {"date": "2014-10-17", "qty": 3}, {"date": "2015-05-13", "qty": 3}, {"date": "2015-08-10", "qty": 3}, {"date": "2015-08-17", "qty": 3}, {"date": "2015-08-19", "qty": 3}, {"date": "2015-09-01", "qty": 3}, {"date": "2015-09-04", "qty": 3}, {"date": "2015-09-05", "qty": 3}, {"date": "2015-09-06", "qty": 3}, {"date": "2015-09-07", "qty": 3}, {"date": "2015-09-15", "qty": 3}, {"date": "2016-03-02", "qty": 3}, {"date": "2018-05-30", "qty": 8}, {"date": "2018-11-23", "qty": 3}, {"date": "2019-05-23", "qty": 3}, {"date": "2020-06-04", "qty": 3}, {"date": "2021-01-31", "qty": 3}, {"date": "2021-04-13", "qty": 4}]