| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 2.41/5 | 3.92/5 |
| Vol 2 | 2.49/5 | 4.09/5 |
| Vol 3 | 2.50/5 | 4.00/5 |
| Vol 4 | 2.46/5 | 3.70/5 |
| Vol 5 | 2.43/5 | 4.03/5 |
| Vol 6 | 2.32/5 | 3.58/5 |
| Vol 7 | 2.39/5 | 3.86/5 |
| Vol 8 | 2.48/5 | 3.64/5 |
| Vol 9 | 2.23/5 | 3.10/5 |
| Vol 10 | 2.00/5 | 2.98/5 |
| Vol 11 | 2.70/5 | 4.30/5 |
| Vol 12 | 2.49/5 | 4.17/5 |
| Vol 13 | 2.45/5 | 4.19/5 |
| Vol 14 | 2.47/5 | 4.21/5 |
| Vol 15 | 2.35/5 | 4.17/5 |
| Vol 16 | 2.70/5 | 4.27/5 |
| Vol 17 | 2.56/5 | 4.25/5 |
| Vol 18 | 2.58/5 | 4.12/5 |
| Vol 19 | 2.49/5 | 3.50/5 |
| Overall | 2.45/5 | 4.30/5 |