| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 3.90/5 | 4.58/5 |
| Vol 2 | 3.90/5 | 4.58/5 |
| Vol 3 | 3.91/5 | 4.58/5 |
| Vol 4 | 3.65/5 | 4.49/5 |
| Vol 5 | 3.60/5 | 4.49/5 |
| Vol 6 | 3.68/5 | 4.50/5 |
| Vol 7 | 3.74/5 | 4.53/5 |
| Vol 8 | 3.67/5 | 4.51/5 |
| Vol 9 | 3.58/5 | 4.45/5 |
| Vol 10 | 3.84/5 | 4.56/5 |
| Vol 11 | 3.67/5 | 4.49/5 |
| Vol 12 | 4.00/5 | 4.61/5 |
| Vol 13 | 3.70/5 | 4.51/5 |
| Vol 14 | 3.60/5 | 4.45/5 |
| Vol 15 | 4.00/5 | 4.60/5 |
| Vol 16 | 3.97/5 | 4.59/5 |
| Overall | 3.78/5 | 4.61/5 |