| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 2.26/5 | 3.62/5 |
| Vol 2 | 2.47/5 | 3.80/5 |
| Vol 3 | 2.46/5 | 3.82/5 |
| Vol 4 | 2.38/5 | 3.67/5 |
| Vol 5 | 2.24/5 | 3.73/5 |
| Vol 6 | 2.18/5 | 3.83/5 |
| Vol 7 | 1.88/5 | 3.83/5 |
| Vol 8 | 1.93/5 | 3.72/5 |
| Vol 9 | 2.61/5 | 3.87/5 |
| Vol 10 | 2.62/5 | 3.97/5 |
| Vol 11 | 2.48/5 | 3.91/5 |
| Vol 12 | 2.50/5 | 3.72/5 |
| Vol 13 | 2.49/5 | 3.88/5 |
| Vol 14 | 2.17/5 | 3.81/5 |
| Vol 15 | 2.44/5 | 3.68/5 |
| Vol 16 | 2.76/5 | 4.01/5 |
| Vol 17 | 2.74/5 | 3.94/5 |
| Vol 18 | 2.85/5 | 4.50/5 |
| Overall | 2.40/5 | 4.50/5 |