| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 2.51/5 | 4.17/5 |
| Vol 2 | 2.61/5 | 4.17/5 |
| Vol 3 | 2.76/5 | 4.38/5 |
| Vol 4 | 2.85/5 | 4.50/5 |
| Vol 5 | 2.84/5 | 4.36/5 |
| Vol 6 | 2.88/5 | 4.41/5 |
| Vol 7 | 2.85/5 | 4.40/5 |
| Vol 8 | 2.71/5 | 4.32/5 |
| Vol 9 | 2.76/5 | 4.36/5 |
| Vol 10 | 2.91/5 | 4.49/5 |
| Vol 11 | 2.62/5 | 4.43/5 |
| Vol 12 | 2.89/5 | 4.40/5 |
| Vol 13 | 2.91/5 | 4.30/5 |
| Vol 14 | 2.88/5 | 4.50/5 |
| Vol 15 | 2.69/5 | 4.23/5 |
| Vol 16 | 2.83/5 | 4.47/5 |
| Vol 17 | 2.93/5 | 4.44/5 |
| Overall | 2.78/5 | 4.50/5 |