| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 3.07/5 | 4.08/5 |
| Vol 2 | 3.09/5 | 3.98/5 |
| Vol 3 | 2.92/5 | 4.04/5 |
| Vol 4 | 3.03/5 | 4.04/5 |
| Vol 5 | 2.78/5 | 3.93/5 |
| Vol 6 | 2.88/5 | 3.92/5 |
| Vol 7 | 2.95/5 | 4.05/5 |
| Vol 8 | 3.07/5 | 4.17/5 |
| Vol 9 | 3.18/5 | 4.16/5 |
| Vol 10 | 3.01/5 | 4.10/5 |
| Vol 11 | 3.28/5 | 4.23/5 |
| Vol 12 | 2.89/5 | 3.95/5 |
| Vol 13 | 2.82/5 | 4.06/5 |
| Vol 14 | 3.03/5 | 4.19/5 |
| Vol 15 | 2.68/5 | 3.94/5 |
| Vol 16 | 3.01/5 | 4.14/5 |
| Vol 17 | 3.31/5 | 4.25/5 |
| Overall | 3.00/5 | 4.25/5 |