| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 3.06/5 | 4.09/5 |
| Vol 2 | 3.10/5 | 4.14/5 |
| Vol 3 | 2.89/5 | 4.12/5 |
| Vol 4 | 3.08/5 | 4.09/5 |
| Vol 5 | 3.24/5 | 4.18/5 |
| Vol 6 | 3.11/5 | 4.09/5 |
| Vol 7 | 3.05/5 | 4.13/5 |
| Vol 8 | 2.67/5 | 4.05/5 |
| Vol 9 | 3.12/5 | 4.14/5 |
| Vol 10 | 3.23/5 | 4.18/5 |
| Vol 11 | 3.26/5 | 4.19/5 |
| Vol 12 | 3.26/5 | 4.21/5 |
| Vol 13 | 3.29/5 | 4.19/5 |
| Overall | 3.11/5 | 4.21/5 |