| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 3.06/5 | 4.03/5 |
| Vol 2 | 3.16/5 | 4.13/5 |
| Vol 3 | 3.12/5 | 4.16/5 |
| Vol 4 | 3.15/5 | 4.22/5 |
| Vol 5 | 3.08/5 | 4.20/5 |
| Vol 6 | 3.10/5 | 4.10/5 |
| Vol 7 | 3.07/5 | 4.08/5 |
| Vol 8 | 3.05/5 | 4.06/5 |
| Vol 9 | 3.30/5 | 4.23/5 |
| Vol 10 | 3.28/5 | 4.21/5 |
| Vol 11 | 3.09/5 | 4.09/5 |
| Vol 12 | 3.31/5 | 4.26/5 |
| Overall | 3.16/5 | 4.26/5 |