| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 3.18/5 | 4.50/5 |
| Vol 2 | 3.42/5 | 4.53/5 |
| Vol 3 | 3.39/5 | 4.49/5 |
| Vol 4 | 3.35/5 | 4.51/5 |
| Vol 5 | 3.62/5 | 4.60/5 |
| Vol 6 | 3.75/5 | 4.61/5 |
| Vol 7 | 3.97/5 | 4.64/5 |
| Vol 8 | 3.97/5 | 4.63/5 |
| Vol 9 | 3.73/5 | 4.58/5 |
| Vol 10 | 3.72/5 | 4.59/5 |
| Vol 11 | 3.76/5 | 4.58/5 |
| Vol 12 | 3.58/5 | 4.54/5 |
| Vol 13 | 3.45/5 | 4.52/5 |
| Vol 14 | 3.93/5 | 4.63/5 |
| Vol 15 | 3.78/5 | 4.59/5 |
| Vol 16 | 3.88/5 | 4.62/5 |
| Vol 17 | 3.73/5 | 4.57/5 |
| Overall | 3.70/5 | 4.64/5 |