| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 3.98/5 | 4.45/5 |
| Vol 2 | 3.97/5 | 4.44/5 |
| Vol 3 | 4.06/5 | 4.48/5 |
| Vol 4 | 3.98/5 | 4.45/5 |
| Vol 5 | 4.01/5 | 4.46/5 |
| Vol 6 | 4.00/5 | 4.46/5 |
| Vol 7 | 3.97/5 | 4.44/5 |
| Vol 8 | 3.95/5 | 4.44/5 |
| Vol 9 | 3.94/5 | 4.43/5 |
| Vol 10 | 3.85/5 | 4.40/5 |
| Vol 11 | 3.88/5 | 4.41/5 |
| Vol 12 | 3.89/5 | 4.41/5 |
| Vol 13 | 3.99/5 | 4.45/5 |
| Vol 14 | 3.92/5 | 4.43/5 |
| Vol 15 | 3.98/5 | 4.45/5 |
| Vol 16 | 3.85/5 | 4.40/5 |
| Overall | 3.95/5 | 4.48/5 |