| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 3.29/5 | 4.44/5 |
| Vol 2 | 3.74/5 | 4.61/5 |
| Vol 3 | 3.55/5 | 4.54/5 |
| Vol 4 | 3.62/5 | 4.56/5 |
| Vol 5 | 3.00/5 | 4.41/5 |
| Vol 6 | 3.49/5 | 4.51/5 |
| Vol 7 | 3.48/5 | 4.49/5 |
| Vol 8 | 3.25/5 | 4.47/5 |
| Vol 9 | 3.66/5 | 4.55/5 |
| Vol 10 | 3.44/5 | 4.46/5 |
| Vol 11 | 3.57/5 | 4.54/5 |
| Overall | 3.46/5 | 4.61/5 |