График частотности: панк

[{"date": "2012-08-22", "qty": 4}, {"date": "2012-08-23", "qty": 11}, {"date": "2012-08-24", "qty": 5}, {"date": "2012-08-25", "qty": 4}, {"date": "2012-08-26", "qty": 3}, {"date": "2012-08-27", "qty": 7}, {"date": "2012-08-29", "qty": 8}, {"date": "2012-08-30", "qty": 3}, {"date": "2012-09-06", "qty": 3}, {"date": "2012-09-10", "qty": 3}, {"date": "2012-09-12", "qty": 4}, {"date": "2012-10-07", "qty": 7}, {"date": "2012-10-09", "qty": 7}, {"date": "2012-10-10", "qty": 4}, {"date": "2012-10-26", "qty": 4}, {"date": "2012-11-02", "qty": 5}, {"date": "2012-11-23", "qty": 4}, {"date": "2012-11-24", "qty": 3}, {"date": "2012-11-25", "qty": 3}, {"date": "2012-11-26", "qty": 3}, {"date": "2012-11-29", "qty": 9}, {"date": "2012-12-28", "qty": 3}, {"date": "2013-01-27", "qty": 3}, {"date": "2013-02-08", "qty": 3}, {"date": "2013-03-01", "qty": 3}, {"date": "2014-04-04", "qty": 3}, {"date": "2014-04-05", "qty": 3}, {"date": "2014-04-06", "qty": 3}, {"date": "2015-01-13", "qty": 3}, {"date": "2015-04-17", "qty": 3}]