| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 3.37/5 | 4.13/5 |
| Vol 2 | 3.47/5 | 4.23/5 |
| Vol 3 | 3.54/5 | 4.29/5 |
| Vol 4 | 3.38/5 | 4.17/5 |
| Vol 5 | 3.39/5 | 4.17/5 |
| Vol 6 | 3.41/5 | 4.16/5 |
| Vol 7 | 3.41/5 | 4.17/5 |
| Vol 8 | 3.53/5 | 4.32/5 |
| Vol 9 | 3.34/5 | 4.03/5 |
| Vol 10 | 3.36/5 | 4.04/5 |
| Vol 11 | 3.22/5 | 4.04/5 |
| Overall | 3.41/5 | 4.32/5 |