| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 3.95/5 | 4.51/5 |
| Vol 2 | 3.94/5 | 4.51/5 |
| Vol 3 | 3.98/5 | 4.53/5 |
| Vol 4 | 3.14/5 | 4.46/5 |
| Vol 5 | 3.09/5 | 4.46/5 |
| Vol 6 | 3.39/5 | 4.45/5 |
| Vol 7 | 2.57/5 | 4.23/5 |
| Vol 8 | 3.39/5 | 4.45/5 |
| Vol 9 | 3.89/5 | 4.49/5 |
| Vol 10 | 3.50/5 | 4.46/5 |
| Vol 11 | 3.32/5 | 4.45/5 |
| Vol 12 | 3.98/5 | 4.52/5 |
| Vol 13 | 3.09/5 | 4.45/5 |
| Vol 14 | 3.12/5 | 4.43/5 |
| Vol 15 | 2.84/5 | 4.43/5 |
| Overall | 3.45/5 | 4.53/5 |