| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 2.35/5 | 4.32/5 |
| Vol 2 | 2.58/5 | 4.32/5 |
| Vol 3 | 2.72/5 | 4.39/5 |
| Vol 4 | 3.25/5 | 4.52/5 |
| Vol 5 | 2.43/5 | 4.35/5 |
| Vol 6 | 2.59/5 | 4.32/5 |
| Vol 7 | 2.66/5 | 4.30/5 |
| Vol 8 | 2.83/5 | 4.46/5 |
| Vol 9 | 2.58/5 | 4.36/5 |
| Vol 10 | 2.66/5 | 4.25/5 |
| Vol 11 | 2.78/5 | 4.40/5 |
| Vol 12 | 2.89/5 | 4.41/5 |
| Vol 13 | 2.35/5 | 4.14/5 |
| Vol 14 | 2.89/5 | 4.52/5 |
| Vol 15 | 3.04/5 | 4.43/5 |
| Vol 16 | 2.61/5 | 4.33/5 |
| Overall | 2.70/5 | 4.52/5 |