График частотности: сезоне

[{"date": "2011-08-27", "qty": 3}, {"date": "2011-09-18", "qty": 3}, {"date": "2011-11-02", "qty": 3}, {"date": "2011-11-26", "qty": 3}, {"date": "2011-11-27", "qty": 4}, {"date": "2011-11-28", "qty": 3}, {"date": "2011-12-09", "qty": 3}, {"date": "2011-12-16", "qty": 5}, {"date": "2011-12-17", "qty": 4}, {"date": "2011-12-18", "qty": 4}, {"date": "2012-08-25", "qty": 7}, {"date": "2013-04-21", "qty": 3}, {"date": "2013-10-02", "qty": 3}, {"date": "2014-08-04", "qty": 3}, {"date": "2014-08-14", "qty": 3}, {"date": "2014-09-04", "qty": 3}, {"date": "2014-09-24", "qty": 3}, {"date": "2015-03-04", "qty": 7}, {"date": "2015-07-25", "qty": 3}, {"date": "2015-07-28", "qty": 3}, {"date": "2015-08-15", "qty": 3}, {"date": "2015-09-08", "qty": 3}, {"date": "2015-09-12", "qty": 3}, {"date": "2016-01-14", "qty": 3}, {"date": "2021-04-18", "qty": 3}]