| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 2.40/5 | 3.71/5 |
| Vol 2 | 2.36/5 | 3.47/5 |
| Vol 3 | 2.38/5 | 3.94/5 |
| Vol 4 | 1.76/5 | 3.13/5 |
| Vol 5 | 2.61/5 | 4.33/5 |
| Vol 6 | 2.62/5 | 4.39/5 |
| Vol 7 | 2.34/5 | 3.82/5 |
| Vol 8 | 2.47/5 | 3.72/5 |
| Vol 9 | 2.60/5 | 4.22/5 |
| Vol 10 | 2.58/5 | 3.87/5 |
| Vol 11 | 2.51/5 | 3.97/5 |
| Vol 12 | 2.51/5 | 3.67/5 |
| Overall | 2.43/5 | 4.39/5 |