| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 2.98/5 | 4.12/5 |
| Vol 2 | 2.96/5 | 3.98/5 |
| Vol 3 | 2.92/5 | 3.93/5 |
| Vol 4 | 2.92/5 | 4.04/5 |
| Vol 5 | 3.27/5 | 4.24/5 |
| Vol 6 | 3.68/5 | 4.42/5 |
| Vol 7 | 3.06/5 | 4.14/5 |
| Vol 8 | 3.22/5 | 4.16/5 |
| Vol 9 | 3.23/5 | 4.14/5 |
| Vol 10 | 3.35/5 | 4.26/5 |
| Vol 11 | 3.67/5 | 4.42/5 |
| Overall | 3.23/5 | 4.42/5 |