График частотности: заблокировать

[{"date": "2011-10-11", "qty": 3}, {"date": "2013-09-06", "qty": 3}, {"date": "2013-11-27", "qty": 3}, {"date": "2015-12-05", "qty": 3}, {"date": "2015-12-06", "qty": 3}, {"date": "2016-04-05", "qty": 3}, {"date": "2017-02-19", "qty": 3}, {"date": "2017-08-21", "qty": 6}, {"date": "2017-11-08", "qty": 3}, {"date": "2017-11-09", "qty": 3}, {"date": "2018-04-13", "qty": 7}, {"date": "2018-04-17", "qty": 4}, {"date": "2018-04-27", "qty": 3}, {"date": "2018-04-28", "qty": 3}, {"date": "2018-04-29", "qty": 5}, {"date": "2018-04-30", "qty": 3}, {"date": "2018-05-01", "qty": 3}, {"date": "2018-05-02", "qty": 3}, {"date": "2018-06-27", "qty": 3}, {"date": "2018-06-28", "qty": 5}, {"date": "2018-06-29", "qty": 4}, {"date": "2019-01-22", "qty": 3}, {"date": "2019-06-14", "qty": 3}, {"date": "2021-01-01", "qty": 3}, {"date": "2021-02-19", "qty": 6}, {"date": "2021-03-18", "qty": 3}, {"date": "2023-03-03", "qty": 3}]