| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 3.18/5 | 4.64/5 |
| Vol 2 | 3.13/5 | 4.68/5 |
| Vol 3 | 3.95/5 | 4.79/5 |
| Vol 4 | 3.02/5 | 4.61/5 |
| Vol 5 | 4.06/5 | 4.78/5 |
| Vol 6 | 3.65/5 | 4.77/5 |
| Vol 7 | 3.76/5 | 4.76/5 |
| Vol 8 | 3.43/5 | 4.74/5 |
| Vol 9 | 3.18/5 | 4.75/5 |
| Vol 10 | 2.98/5 | 4.61/5 |
| Vol 11 | 3.04/5 | 4.65/5 |
| Vol 12 | 3.07/5 | 4.69/5 |
| Vol 13 | 3.26/5 | 4.70/5 |
| Vol 14 | 3.59/5 | 4.71/5 |
| Vol 15 | 3.11/5 | 4.61/5 |
| Vol 16 | 3.90/5 | 4.76/5 |
| Overall | 3.39/5 | 4.79/5 |