| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 3.22/5 | 4.21/5 |
| Vol 2 | 2.96/5 | 3.97/5 |
| Vol 3 | 3.18/5 | 4.26/5 |
| Vol 4 | 3.07/5 | 4.21/5 |
| Vol 5 | 3.25/5 | 4.27/5 |
| Vol 6 | 3.06/5 | 3.99/5 |
| Vol 7 | 3.22/5 | 4.13/5 |
| Vol 8 | 3.14/5 | 4.22/5 |
| Vol 9 | 3.05/5 | 4.21/5 |
| Vol 10 | 3.01/5 | 4.18/5 |
| Vol 11 | 3.25/5 | 4.32/5 |
| Vol 12 | 3.16/5 | 4.28/5 |
| Vol 13 | 3.22/5 | 4.28/5 |
| Vol 14 | 3.23/5 | 4.09/5 |
| Vol 15 | 3.08/5 | 4.19/5 |
| Vol 16 | 2.79/5 | 4.05/5 |
| Vol 17 | 3.03/5 | 4.09/5 |
| Vol 18 | 3.08/5 | 4.23/5 |
| Vol 19 | 3.08/5 | 4.14/5 |
| Vol 20 | 2.91/5 | 4.14/5 |
| Vol 21 | 3.12/5 | 4.27/5 |
| Vol 22 | 2.92/5 | 4.21/5 |
| Vol 23 | 3.07/5 | 4.01/5 |
| Vol 24 | 3.15/5 | 4.16/5 |
| Overall | 3.09/5 | 4.32/5 |