| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 2.69/5 | 4.60/5 |
| Vol 2 | 2.60/5 | 4.51/5 |
| Vol 3 | 2.70/5 | 4.46/5 |
| Vol 4 | 2.53/5 | 4.44/5 |
| Vol 5 | 2.47/5 | 4.46/5 |
| Vol 6 | 2.71/5 | 4.50/5 |
| Vol 7 | 2.58/5 | 4.53/5 |
| Vol 8 | 2.68/5 | 4.46/5 |
| Vol 9 | 2.66/5 | 4.42/5 |
| Vol 10 | 2.57/5 | 4.35/5 |
| Vol 11 | 2.97/5 | 4.66/5 |
| Vol 12 | 2.71/5 | 4.44/5 |
| Vol 13 | 2.72/5 | 4.48/5 |
| Vol 14 | 2.61/5 | 4.50/5 |
| Vol 15 | 2.78/5 | 4.57/5 |
| Vol 16 | 2.40/5 | 4.33/5 |
| Vol 17 | 2.78/5 | 4.48/5 |
| Overall | 2.66/5 | 4.66/5 |