| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 2.77/5 | 4.55/5 |
| Vol 2 | 2.10/5 | 4.43/5 |
| Vol 3 | 1.94/5 | 4.32/5 |
| Vol 4 | 1.88/5 | 4.42/5 |
| Vol 5 | 2.52/5 | 4.54/5 |
| Vol 6 | 2.28/5 | 4.50/5 |
| Vol 7 | 4.06/5 | 4.62/5 |
| Vol 8 | 1.86/5 | 4.38/5 |
| Vol 9 | 2.19/5 | 4.46/5 |
| Vol 10 | 4.03/5 | 4.61/5 |
| Vol 11 | 2.58/5 | 4.52/5 |
| Vol 12 | 1.92/5 | 4.46/5 |
| Vol 13 | 2.52/5 | 4.53/5 |
| Vol 14 | 2.53/5 | 4.52/5 |
| Vol 15 | 3.50/5 | 4.58/5 |
| Overall | 2.58/5 | 4.62/5 |