| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 3.79/5 | 4.53/5 |
| Vol 2 | 3.92/5 | 4.58/5 |
| Vol 3 | 3.68/5 | 4.46/5 |
| Vol 4 | 3.78/5 | 4.54/5 |
| Vol 5 | 3.64/5 | 4.45/5 |
| Vol 6 | 3.62/5 | 4.44/5 |
| Vol 7 | 3.88/5 | 4.56/5 |
| Vol 8 | 3.67/5 | 4.43/5 |
| Vol 9 | 3.83/5 | 4.53/5 |
| Vol 10 | 3.68/5 | 4.46/5 |
| Vol 11 | 3.82/5 | 4.54/5 |
| Vol 12 | 3.77/5 | 4.53/5 |
| Vol 13 | 3.77/5 | 4.53/5 |
| Overall | 3.75/5 | 4.58/5 |