| Date | Grade | Date | Grade |
|---|---|---|---|
| 2021.3.26 | 4 | 2021.5.21 | 1 |
| 2021.4.2 | 4 | 2021.5.24 | 1 |
| 2021.4.5 | 4 | 2021.5.31 | 1 |
| 2021.4.9 | 4 | 2021.6.4 | 1 |
| 2021.4.16 | 4 | 2021.6.8 | 1 |
| 2021.4.23 | 4 | 2021.6.11 | 1 |
| 2021.4.27 | 4 | 2021.6.15 | 1 |
| 2021.4.30 | 3 | 2021.6.18 | 1 |
| 2021.5.4 | 2 | 2021.6.21 | 1 |
| 2021.5.7 | 2 | 2021.6.25 | 1 |
| 2021.5.14 | 1 | 2021.7.2 | 1 |