| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 1.98/5 | 4.64/5 |
| Vol 2 | 2.14/5 | 4.67/5 |
| Vol 3 | 1.98/5 | 4.67/5 |
| Vol 4 | 1.99/5 | 4.65/5 |
| Vol 5 | 2.30/5 | 4.75/5 |
| Vol 6 | 2.72/5 | 4.76/5 |
| Vol 7 | 2.61/5 | 4.76/5 |
| Vol 8 | 2.17/5 | 4.75/5 |
| Vol 9 | 2.21/5 | 4.68/5 |
| Vol 10 | 2.28/5 | 4.74/5 |
| Vol 11 | 2.23/5 | 4.64/5 |
| Vol 12 | 2.32/5 | 4.51/5 |
| Vol 13 | 2.38/5 | 4.57/5 |
| Vol 14 | 2.82/5 | 4.73/5 |
| Vol 15 | 2.56/5 | 4.74/5 |
| Overall | 2.34/5 | 4.76/5 |