| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 3.96/5 | 4.59/5 |
| Vol 2 | 3.97/5 | 4.60/5 |
| Vol 3 | 4.00/5 | 4.60/5 |
| Vol 4 | 4.05/5 | 4.62/5 |
| Vol 5 | 4.09/5 | 4.64/5 |
| Vol 6 | 4.02/5 | 4.61/5 |
| Vol 7 | 3.98/5 | 4.60/5 |
| Vol 8 | 3.98/5 | 4.60/5 |
| Vol 9 | 4.00/5 | 4.60/5 |
| Vol 10 | 4.10/5 | 4.64/5 |
| Vol 11 | 3.81/5 | 4.53/5 |
| Vol 12 | 3.92/5 | 4.58/5 |
| Vol 13 | 3.79/5 | 4.55/5 |
| Vol 14 | 3.85/5 | 4.56/5 |
| Overall | 3.97/5 | 4.64/5 |