| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 2.03/5 | 2.70/5 |
| Vol 2 | 1.96/5 | 2.67/5 |
| Vol 3 | 1.99/5 | 2.94/5 |
| Vol 4 | 2.00/5 | 2.78/5 |
| Vol 5 | 1.81/5 | 2.62/5 |
| Vol 6 | 2.04/5 | 2.68/5 |
| Vol 7 | 1.94/5 | 2.62/5 |
| Vol 8 | 2.00/5 | 2.61/5 |
| Vol 9 | 1.75/5 | 2.59/5 |
| Vol 10 | 2.12/5 | 2.76/5 |
| Vol 11 | 1.88/5 | 2.61/5 |
| Vol 12 | 1.81/5 | 2.64/5 |
| Vol 13 | 1.77/5 | 2.58/5 |
| Vol 14 | 1.94/5 | 2.63/5 |
| Vol 15 | 2.03/5 | 2.74/5 |
| Overall | 1.94/5 | 2.94/5 |