График частотности: празднуют

[{"date": "2011-01-07", "qty": 4}, {"date": "2011-01-08", "qty": 5}, {"date": "2011-01-09", "qty": 4}, {"date": "2011-01-10", "qty": 3}, {"date": "2011-03-14", "qty": 3}, {"date": "2011-06-12", "qty": 3}, {"date": "2011-08-22", "qty": 7}, {"date": "2011-10-21", "qty": 3}, {"date": "2011-10-22", "qty": 3}, {"date": "2011-10-23", "qty": 4}, {"date": "2014-07-18", "qty": 3}, {"date": "2014-07-19", "qty": 3}, {"date": "2014-07-20", "qty": 3}, {"date": "2015-05-08", "qty": 3}, {"date": "2015-07-28", "qty": 3}, {"date": "2017-06-12", "qty": 3}, {"date": "2017-06-25", "qty": 3}, {"date": "2018-07-01", "qty": 4}, {"date": "2018-07-02", "qty": 4}, {"date": "2018-07-28", "qty": 3}, {"date": "2018-10-07", "qty": 3}, {"date": "2019-08-02", "qty": 3}, {"date": "2021-05-03", "qty": 3}, {"date": "2022-08-09", "qty": 4}, {"date": "2024-04-12", "qty": 3}, {"date": "2025-09-15", "qty": 3}, {"date": "2026-07-08", "qty": 3}]