| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 2.70/5 | 4.21/5 |
| Vol 2 | 2.70/5 | 4.03/5 |
| Vol 3 | 2.85/5 | 4.09/5 |
| Vol 4 | 2.83/5 | 4.32/5 |
| Vol 5 | 2.74/5 | 4.14/5 |
| Vol 6 | 2.76/5 | 4.06/5 |
| Vol 7 | 2.77/5 | 4.23/5 |
| Vol 8 | 2.67/5 | 4.32/5 |
| Vol 9 | 2.90/5 | 4.27/5 |
| Vol 10 | 2.42/5 | 4.00/5 |
| Vol 11 | 2.46/5 | 4.03/5 |
| Vol 12 | 2.76/5 | 3.97/5 |
| Vol 13 | 3.03/5 | 4.32/5 |
| Vol 14 | 2.85/5 | 4.30/5 |
| Vol 15 | 3.04/5 | 4.00/5 |
| Vol 16 | 2.86/5 | 4.06/5 |
| Overall | 2.77/5 | 4.32/5 |