datetime,y
2020-05-31,150.0
2020-06-30,508.0
2020-07-31,292.0
2020-08-31,800.0
2020-09-30,800.0
2020-10-31,800.0
2020-11-30,300.0
2020-12-31,300.0
2021-01-31,237.0
2021-02-28,237.0
2021-03-31,600.0
2021-04-30,200.0
2021-05-31,600.0
2021-06-30,400.0
2021-07-31,1300.0
2021-08-31,2000.0
2021-09-30,6500.0
2021-10-31,1100.0
2021-11-30,1000.0
2021-12-31,2000.0
2022-01-31,3000.0
2022-02-28,2200.0
2022-03-31,6800.0
2022-04-30,2000.0
2022-05-31,6000.0
2022-06-30,5300.0
2022-07-31,3000.0
2022-08-31,2900.0
2022-09-30,13600.0
2022-10-31,15400.0
2022-11-30,14800.0
2022-12-31,4000.0