| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 2.90/5 | 4.17/5 |
| Vol 2 | 2.87/5 | 4.03/5 |
| Vol 3 | 2.68/5 | 3.82/5 |
| Vol 4 | 2.93/5 | 4.35/5 |
| Vol 5 | 2.95/5 | 4.17/5 |
| Vol 6 | 3.07/5 | 4.14/5 |
| Vol 7 | 2.83/5 | 4.19/5 |
| Vol 8 | 2.81/5 | 4.25/5 |
| Vol 9 | 2.74/5 | 4.06/5 |
| Vol 10 | 3.23/5 | 4.33/5 |
| Vol 11 | 2.93/5 | 4.25/5 |
| Vol 12 | 3.00/5 | 4.30/5 |
| Vol 13 | 2.84/5 | 4.25/5 |
| Vol 14 | 2.98/5 | 4.45/5 |
| Vol 15 | 3.15/5 | 4.27/5 |
| Vol 16 | 2.96/5 | 4.25/5 |
| Vol 17 | 2.80/5 | 4.41/5 |
| Vol 18 | 2.83/5 | 4.12/5 |
| Vol 19 | 3.10/5 | 4.39/5 |
| Vol 20 | 2.88/5 | 4.29/5 |
| Vol 21 | 2.88/5 | 4.38/5 |
| Overall | 2.92/5 | 4.45/5 |