| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 3.10/5 | 3.95/5 |
| Vol 2 | 3.23/5 | 4.05/5 |
| Vol 3 | 3.37/5 | 4.17/5 |
| Vol 4 | 3.43/5 | 4.12/5 |
| Vol 5 | 3.31/5 | 4.13/5 |
| Vol 6 | 3.33/5 | 4.11/5 |
| Vol 7 | 3.48/5 | 4.26/5 |
| Vol 8 | 3.51/5 | 4.39/5 |
| Vol 9 | 3.53/5 | 4.31/5 |
| Vol 10 | 3.51/5 | 4.29/5 |
| Vol 11 | 3.48/5 | 4.36/5 |
| Vol 12 | 3.72/5 | 4.49/5 |
| Vol 13 | 3.63/5 | 4.46/5 |
| Vol 14 | 3.55/5 | 4.35/5 |
| Vol 15 | 3.48/5 | 4.23/5 |
| Vol 16 | 3.64/5 | 4.42/5 |
| Vol 17 | 3.52/5 | 4.25/5 |
| Overall | 3.46/5 | 4.49/5 |