| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 2.88/5 | 4.39/5 |
| Vol 2 | 2.88/5 | 4.21/5 |
| Vol 3 | 3.03/5 | 4.27/5 |
| Vol 4 | 3.01/5 | 4.50/5 |
| Vol 5 | 2.92/5 | 4.32/5 |
| Vol 6 | 2.94/5 | 4.24/5 |
| Vol 7 | 2.95/5 | 4.41/5 |
| Vol 8 | 2.85/5 | 4.50/5 |
| Vol 9 | 3.08/5 | 4.45/5 |
| Vol 10 | 2.60/5 | 4.18/5 |
| Vol 11 | 2.64/5 | 4.21/5 |
| Vol 12 | 2.94/5 | 4.15/5 |
| Vol 13 | 3.21/5 | 4.50/5 |
| Vol 14 | 3.03/5 | 4.48/5 |
| Vol 15 | 3.22/5 | 4.18/5 |
| Vol 16 | 3.04/5 | 4.24/5 |
| Overall | 2.97/5 | 4.50/5 |