2023-01-15  -1
2023-02-15  0
2023-03-15  4
2023-04-15  10
2023-05-15  15
2023-06-15  18
2023-07-15  20
2023-08-15  20
2023-09-15  16
2023-10-15  12
2023-11-15  5
2023-12-15  0