| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 2.72/5 | 4.40/5 |
| Vol 2 | 2.88/5 | 4.34/5 |
| Vol 3 | 2.80/5 | 4.53/5 |
| Vol 4 | 2.83/5 | 4.60/5 |
| Vol 5 | 3.22/5 | 4.72/5 |
| Vol 6 | 2.97/5 | 4.60/5 |
| Vol 7 | 2.78/5 | 4.51/5 |
| Vol 8 | 3.04/5 | 4.71/5 |
| Vol 9 | 3.25/5 | 4.75/5 |
| Vol 10 | 3.13/5 | 4.60/5 |
| Vol 11 | 3.01/5 | 4.64/5 |
| Vol 12 | 2.93/5 | 4.55/5 |
| Vol 13 | 2.85/5 | 4.63/5 |
| Vol 14 | 3.08/5 | 4.64/5 |
| Vol 15 | 2.79/5 | 4.66/5 |
| Vol 16 | 3.13/5 | 4.63/5 |
| Vol 17 | 3.08/5 | 4.66/5 |
| Vol 18 | 2.78/5 | 4.60/5 |
| Vol 19 | 2.95/5 | 4.69/5 |
| Vol 20 | 3.06/5 | 4.71/5 |
| Vol 21 | 2.97/5 | 4.61/5 |
| Vol 22 | 2.92/5 | 4.71/5 |
| Vol 23 | 3.07/5 | 4.68/5 |
| Overall | 2.96/5 | 4.75/5 |