| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 2.87/5 | 4.49/5 |
| Vol 2 | 3.77/5 | 4.58/5 |
| Vol 3 | 3.80/5 | 4.59/5 |
| Vol 4 | 3.15/5 | 4.53/5 |
| Vol 5 | 4.00/5 | 4.60/5 |
| Vol 6 | 3.20/5 | 4.55/5 |
| Vol 7 | 3.53/5 | 4.55/5 |
| Vol 8 | 2.90/5 | 4.53/5 |
| Vol 9 | 4.05/5 | 4.62/5 |
| Vol 10 | 4.04/5 | 4.62/5 |
| Vol 11 | 4.04/5 | 4.62/5 |
| Vol 12 | 2.91/5 | 4.51/5 |
| Vol 13 | 3.94/5 | 4.59/5 |
| Vol 14 | 4.10/5 | 4.64/5 |
| Vol 15 | 4.05/5 | 4.62/5 |
| Overall | 3.62/5 | 4.64/5 |