| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 3.45/5 | 4.43/5 |
| Vol 2 | 3.48/5 | 4.44/5 |
| Vol 3 | 3.08/5 | 4.33/5 |
| Vol 4 | 3.10/5 | 4.27/5 |
| Vol 5 | 3.48/5 | 4.33/5 |
| Vol 6 | 3.46/5 | 4.37/5 |
| Vol 7 | 3.17/5 | 4.31/5 |
| Vol 8 | 3.51/5 | 4.44/5 |
| Vol 9 | 3.12/5 | 4.31/5 |
| Vol 10 | 3.39/5 | 4.35/5 |
| Vol 11 | 3.27/5 | 4.28/5 |
| Vol 12 | 3.63/5 | 4.47/5 |
| Overall | 3.34/5 | 4.47/5 |