| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 2.06/5 | 4.38/5 |
| Vol 2 | 1.48/5 | 2.70/5 |
| Vol 3 | 1.72/5 | 4.20/5 |
| Vol 4 | 1.75/5 | 4.19/5 |
| Vol 5 | 1.92/5 | 4.53/5 |
| Vol 6 | 2.80/5 | 4.53/5 |
| Vol 7 | 4.02/5 | 4.61/5 |
| Vol 8 | 1.88/5 | 4.41/5 |
| Vol 9 | 1.86/5 | 4.49/5 |
| Vol 10 | 1.73/5 | 4.26/5 |
| Vol 11 | 3.17/5 | 4.57/5 |
| Vol 12 | 2.44/5 | 4.50/5 |
| Vol 13 | 2.15/5 | 4.40/5 |
| Vol 14 | 2.62/5 | 4.39/5 |
| Vol 15 | 2.55/5 | 4.37/5 |
| Vol 16 | 3.00/5 | 4.56/5 |
| Overall | 2.32/5 | 4.61/5 |