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| created_at | tax |
|---|---|
| 2020-02-01 | 300 |
| 2020-03-01 | 300 |
| 2020-04-01 | 300 |
| 2020-05-01 | 300 |
| 2020-06-01 | 300 |
| 2020-06-10 | 350 |
| 2020-07-01 | 350 |
| 2020-08-01 | 350 |
| 2020-09-01 | 350 |
| 2020-09-15 | 400 |
| 2020-09-28 | 320 |
| 2020-10-01 | 320 |