| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 1.91/5 | 4.53/5 |
| Vol 2 | 2.16/5 | 4.82/5 |
| Vol 3 | 2.66/5 | 4.98/5 |
| Vol 4 | 2.15/5 | 4.83/5 |
| Vol 5 | 2.14/5 | 4.77/5 |
| Vol 6 | 2.12/5 | 4.77/5 |
| Vol 7 | 2.42/5 | 4.91/5 |
| Vol 8 | 2.18/5 | 4.79/5 |
| Vol 9 | 1.99/5 | 4.53/5 |
| Vol 10 | 2.08/5 | 4.47/5 |
| Vol 11 | 2.21/5 | 4.77/5 |
| Vol 12 | 2.21/5 | 4.78/5 |
| Vol 13 | 2.22/5 | 4.87/5 |
| Vol 14 | 2.12/5 | 4.66/5 |
| Vol 15 | 2.70/5 | 4.99/5 |
| Vol 16 | 2.39/5 | 4.94/5 |
| Vol 17 | 2.23/5 | 4.87/5 |
| Vol 18 | 2.38/5 | 4.96/5 |
| Vol 19 | 1.93/5 | 3.47/5 |
| Vol 20 | 2.22/5 | 4.69/5 |
| Vol 21 | 2.15/5 | 4.72/5 |
| Vol 22 | 2.04/5 | 4.47/5 |
| Vol 23 | 2.11/5 | 4.61/5 |
| Overall | 2.20/5 | 4.99/5 |