| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 3.71/5 | 4.74/5 |
| Vol 2 | 2.69/5 | 4.36/5 |
| Vol 3 | 2.83/5 | 4.40/5 |
| Vol 4 | 2.90/5 | 4.52/5 |
| Vol 5 | 2.87/5 | 4.42/5 |
| Vol 6 | 2.97/5 | 4.55/5 |
| Vol 7 | 2.99/5 | 4.44/5 |
| Vol 8 | 3.03/5 | 4.57/5 |
| Vol 9 | 2.86/5 | 4.38/5 |
| Vol 10 | 3.04/5 | 4.48/5 |
| Vol 11 | 2.85/5 | 4.48/5 |
| Vol 12 | 2.66/5 | 4.31/5 |
| Vol 13 | 3.00/5 | 4.33/5 |
| Vol 14 | 2.82/5 | 4.28/5 |
| Vol 15 | 2.77/5 | 4.10/5 |
| Vol 16 | 2.96/5 | 4.46/5 |
| Overall | 3.01/5 | 4.74/5 |