| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 2.00/5 | 4.51/5 |
| Vol 2 | 2.23/5 | 4.43/5 |
| Vol 3 | 2.20/5 | 4.25/5 |
| Vol 4 | 2.23/5 | 3.48/5 |
| Vol 5 | 2.76/5 | 4.72/5 |
| Vol 6 | 2.49/5 | 4.09/5 |
| Vol 7 | 2.57/5 | 4.37/5 |
| Vol 8 | 2.25/5 | 4.14/5 |
| Vol 9 | 2.07/5 | 4.34/5 |
| Vol 10 | 2.34/5 | 4.11/5 |
| Vol 11 | 2.24/5 | 4.27/5 |
| Overall | 2.32/5 | 4.72/5 |