| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 3.00/5 | 3.88/5 |
| Vol 2 | 3.21/5 | 4.14/5 |
| Vol 3 | 3.11/5 | 4.16/5 |
| Vol 4 | 3.20/5 | 4.19/5 |
| Vol 5 | 3.25/5 | 4.14/5 |
| Vol 6 | 3.14/5 | 4.03/5 |
| Vol 7 | 3.32/5 | 4.18/5 |
| Vol 8 | 3.12/5 | 4.07/5 |
| Vol 9 | 3.33/5 | 4.23/5 |
| Vol 10 | 3.27/5 | 4.18/5 |
| Vol 11 | 3.19/5 | 4.03/5 |
| Vol 12 | 3.22/5 | 4.14/5 |
| Vol 13 | 3.42/5 | 4.26/5 |
| Vol 14 | 3.32/5 | 4.10/5 |
| Vol 15 | 3.43/5 | 4.25/5 |
| Vol 16 | 3.13/5 | 4.12/5 |
| Vol 17 | 3.21/5 | 4.14/5 |
| Vol 18 | 3.17/5 | 4.05/5 |
| Overall | 3.23/5 | 4.26/5 |