| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 2.91/5 | 4.43/5 |
| Vol 2 | 2.48/5 | 4.19/5 |
| Vol 3 | 2.77/5 | 4.41/5 |
| Vol 4 | 2.88/5 | 4.42/5 |
| Vol 5 | 2.86/5 | 4.45/5 |
| Vol 6 | 2.70/5 | 4.27/5 |
| Vol 7 | 3.29/5 | 4.50/5 |
| Vol 8 | 2.67/5 | 4.32/5 |
| Vol 9 | 2.77/5 | 4.41/5 |
| Vol 10 | 2.89/5 | 4.39/5 |
| Vol 11 | 3.00/5 | 4.46/5 |
| Vol 12 | 3.37/5 | 4.52/5 |
| Vol 13 | 3.20/5 | 4.49/5 |
| Vol 14 | 3.60/5 | 4.55/5 |
| Vol 15 | 3.09/5 | 4.44/5 |
| Vol 16 | 3.25/5 | 4.52/5 |
| Vol 17 | 2.83/5 | 4.35/5 |
| Vol 18 | 2.73/5 | 4.36/5 |
| Vol 19 | 2.99/5 | 4.51/5 |
| Vol 20 | 2.85/5 | 4.47/5 |
| Vol 21 | 3.13/5 | 4.52/5 |
| Vol 22 | 3.03/5 | 4.36/5 |
| Vol 23 | 2.88/5 | 4.41/5 |
| Vol 24 | 3.05/5 | 4.47/5 |
| Overall | 2.97/5 | 4.55/5 |