| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 3.09/5 | 4.14/5 |
| Vol 2 | 3.17/5 | 4.16/5 |
| Vol 3 | 3.02/5 | 4.02/5 |
| Vol 4 | 2.88/5 | 4.03/5 |
| Vol 5 | 3.18/5 | 4.07/5 |
| Vol 6 | 3.02/5 | 4.08/5 |
| Vol 7 | 3.03/5 | 3.96/5 |
| Vol 8 | 3.09/5 | 4.14/5 |
| Vol 9 | 2.97/5 | 3.89/5 |
| Vol 10 | 3.07/5 | 4.04/5 |
| Vol 11 | 3.10/5 | 3.99/5 |
| Vol 12 | 2.87/5 | 3.85/5 |
| Vol 13 | 3.16/5 | 4.10/5 |
| Vol 14 | 3.03/5 | 3.94/5 |
| Vol 15 | 3.10/5 | 3.84/5 |
| Overall | 3.05/5 | 4.16/5 |