График частотности: Санкт-Петербург

[{"date": "2015-04-02", "qty": 17}, {"date": "2015-04-12", "qty": 4}, {"date": "2015-05-19", "qty": 3}, {"date": "2015-06-20", "qty": 3}, {"date": "2015-07-02", "qty": 10}, {"date": "2015-07-03", "qty": 7}, {"date": "2015-07-17", "qty": 9}, {"date": "2015-08-18", "qty": 8}, {"date": "2015-08-19", "qty": 8}, {"date": "2015-08-27", "qty": 3}, {"date": "2015-09-17", "qty": 8}, {"date": "2015-10-08", "qty": 6}, {"date": "2015-10-16", "qty": 6}, {"date": "2015-10-17", "qty": 8}, {"date": "2015-10-31", "qty": 3}, {"date": "2015-11-27", "qty": 15}, {"date": "2015-11-28", "qty": 6}, {"date": "2015-11-29", "qty": 4}, {"date": "2016-01-19", "qty": 8}, {"date": "2016-02-09", "qty": 3}, {"date": "2016-04-01", "qty": 4}, {"date": "2016-04-18", "qty": 4}, {"date": "2016-04-27", "qty": 7}, {"date": "2016-05-08", "qty": 12}, {"date": "2016-05-09", "qty": 3}, {"date": "2016-06-16", "qty": 3}, {"date": "2016-07-08", "qty": 3}, {"date": "2016-08-08", "qty": 3}, {"date": "2016-11-18", "qty": 3}, {"date": "2017-04-03", "qty": 117}]