| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 3.99/5 | 4.61/5 |
| Vol 2 | 3.85/5 | 4.58/5 |
| Vol 3 | 3.60/5 | 4.47/5 |
| Vol 4 | 4.02/5 | 4.61/5 |
| Vol 5 | 3.87/5 | 4.59/5 |
| Vol 6 | 4.01/5 | 4.62/5 |
| Vol 7 | 4.05/5 | 4.62/5 |
| Vol 8 | 3.95/5 | 4.60/5 |
| Vol 9 | 3.99/5 | 4.61/5 |
| Vol 10 | 4.17/5 | 4.67/5 |
| Vol 11 | 3.78/5 | 4.56/5 |
| Vol 12 | 3.82/5 | 4.56/5 |
| Overall | 3.92/5 | 4.67/5 |