| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 2.16/5 | 4.35/5 |
| Vol 2 | 2.46/5 | 4.41/5 |
| Vol 3 | 2.46/5 | 4.39/5 |
| Vol 4 | 4.03/5 | 4.57/5 |
| Vol 5 | 2.94/5 | 4.52/5 |
| Vol 6 | 2.68/5 | 4.50/5 |
| Vol 7 | 3.61/5 | 4.53/5 |
| Vol 8 | 3.99/5 | 4.56/5 |
| Vol 9 | 2.94/5 | 4.52/5 |
| Vol 10 | 2.83/5 | 4.51/5 |
| Vol 11 | 3.94/5 | 4.54/5 |
| Vol 12 | 2.77/5 | 4.49/5 |
| Vol 13 | 4.03/5 | 4.58/5 |
| Vol 14 | 2.74/5 | 4.50/5 |
| Vol 15 | 2.89/5 | 4.51/5 |
| Vol 16 | 2.73/5 | 4.51/5 |
| Vol 17 | 2.79/5 | 4.49/5 |
| Vol 18 | 4.02/5 | 4.57/5 |
| Vol 19 | 2.92/5 | 4.53/5 |
| Vol 20 | 2.20/5 | 4.38/5 |
| Vol 21 | 2.65/5 | 4.42/5 |
| Vol 22 | 2.23/5 | 4.41/5 |
| Vol 23 | 2.40/5 | 4.43/5 |
| Vol 24 | 1.90/5 | 4.34/5 |
| Overall | 2.89/5 | 4.58/5 |