| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 3.75/5 | 4.55/5 |
| Vol 2 | 3.63/5 | 4.49/5 |
| Vol 3 | 3.60/5 | 4.47/5 |
| Vol 4 | 3.76/5 | 4.53/5 |
| Vol 5 | 3.67/5 | 4.50/5 |
| Vol 6 | 3.70/5 | 4.50/5 |
| Vol 7 | 3.65/5 | 4.49/5 |
| Vol 8 | 3.70/5 | 4.51/5 |
| Vol 9 | 3.78/5 | 4.54/5 |
| Vol 10 | 3.70/5 | 4.50/5 |
| Vol 11 | 4.02/5 | 4.61/5 |
| Vol 12 | 3.76/5 | 4.53/5 |
| Overall | 3.73/5 | 4.61/5 |