| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 2.25/5 | 4.52/5 |
| Vol 2 | 2.51/5 | 4.64/5 |
| Vol 3 | 2.51/5 | 4.38/5 |
| Vol 4 | 2.35/5 | 4.38/5 |
| Vol 5 | 1.84/5 | 3.15/5 |
| Vol 6 | 2.32/5 | 4.38/5 |
| Vol 7 | 2.25/5 | 4.64/5 |
| Vol 8 | 2.57/5 | 4.68/5 |
| Vol 9 | 2.26/5 | 4.46/5 |
| Vol 10 | 2.17/5 | 4.48/5 |
| Vol 11 | 1.96/5 | 4.04/5 |
| Vol 12 | 2.19/5 | 4.48/5 |
| Overall | 2.27/5 | 4.68/5 |