| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 3.23/5 | 4.14/5 |
| Vol 2 | 2.99/5 | 4.20/5 |
| Vol 3 | 3.39/5 | 4.41/5 |
| Vol 4 | 3.21/5 | 4.18/5 |
| Vol 5 | 3.45/5 | 4.36/5 |
| Vol 6 | 3.32/5 | 4.31/5 |
| Vol 7 | 3.37/5 | 4.42/5 |
| Vol 8 | 3.43/5 | 4.35/5 |
| Vol 9 | 3.35/5 | 4.31/5 |
| Vol 10 | 3.51/5 | 4.39/5 |
| Vol 11 | 3.30/5 | 4.41/5 |
| Vol 12 | 3.41/5 | 4.35/5 |
| Overall | 3.33/5 | 4.42/5 |