| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 3.13/5 | 4.04/5 |
| Vol 2 | 3.38/5 | 4.24/5 |
| Vol 3 | 3.51/5 | 4.39/5 |
| Vol 4 | 3.60/5 | 4.44/5 |
| Vol 5 | 3.56/5 | 4.42/5 |
| Vol 6 | 3.45/5 | 4.34/5 |
| Vol 7 | 3.45/5 | 4.37/5 |
| Vol 8 | 3.48/5 | 4.39/5 |
| Vol 9 | 3.44/5 | 4.38/5 |
| Vol 10 | 3.40/5 | 4.34/5 |
| Vol 11 | 3.31/5 | 4.27/5 |
| Vol 12 | 3.48/5 | 4.39/5 |
| Overall | 3.43/5 | 4.44/5 |