| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 2.10/5 | 3.71/5 |
| Vol 2 | 2.06/5 | 4.06/5 |
| Vol 3 | 1.99/5 | 3.81/5 |
| Vol 4 | 1.96/5 | 3.98/5 |
| Vol 5 | 2.28/5 | 4.11/5 |
| Vol 6 | 1.82/5 | 3.23/5 |
| Vol 7 | 2.16/5 | 3.53/5 |
| Vol 8 | 2.29/5 | 4.45/5 |
| Vol 9 | 2.47/5 | 4.50/5 |
| Vol 10 | 2.42/5 | 4.45/5 |
| Vol 11 | 2.12/5 | 4.48/5 |
| Vol 12 | 2.45/5 | 4.19/5 |
| Vol 13 | 2.43/5 | 4.20/5 |
| Overall | 2.20/5 | 4.50/5 |