| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 2.12/5 | 4.39/5 |
| Vol 2 | 2.06/5 | 4.27/5 |
| Vol 3 | 2.23/5 | 4.41/5 |
| Vol 4 | 2.43/5 | 4.44/5 |
| Vol 5 | 2.22/5 | 4.14/5 |
| Vol 6 | 1.83/5 | 4.03/5 |
| Vol 7 | 2.12/5 | 4.12/5 |
| Vol 8 | 2.84/5 | 4.52/5 |
| Vol 9 | 2.04/5 | 4.32/5 |
| Vol 10 | 2.15/5 | 4.38/5 |
| Vol 11 | 2.38/5 | 4.38/5 |
| Vol 12 | 2.64/5 | 4.49/5 |
| Vol 13 | 2.50/5 | 4.42/5 |
| Vol 14 | 1.98/5 | 3.82/5 |
| Vol 15 | 2.89/5 | 4.53/5 |
| Vol 16 | 2.21/5 | 4.36/5 |
| Vol 17 | 2.39/5 | 4.47/5 |
| Vol 18 | 2.55/5 | 4.42/5 |
| Overall | 2.31/5 | 4.53/5 |