| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 3.03/5 | 4.10/5 |
| Vol 2 | 3.21/5 | 4.18/5 |
| Vol 3 | 2.90/5 | 3.93/5 |
| Vol 4 | 3.16/5 | 4.17/5 |
| Vol 5 | 3.21/5 | 4.24/5 |
| Vol 6 | 3.23/5 | 4.19/5 |
| Vol 7 | 2.93/5 | 3.99/5 |
| Vol 8 | 2.97/5 | 4.13/5 |
| Vol 9 | 3.10/5 | 4.14/5 |
| Vol 10 | 2.96/5 | 4.18/5 |
| Vol 11 | 2.99/5 | 3.96/5 |
| Overall | 3.06/5 | 4.24/5 |