| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 3.65/5 | 4.39/5 |
| Vol 2 | 3.73/5 | 4.40/5 |
| Vol 3 | 3.66/5 | 4.38/5 |
| Vol 4 | 3.72/5 | 4.39/5 |
| Vol 5 | 3.77/5 | 4.41/5 |
| Vol 6 | 3.51/5 | 4.29/5 |
| Vol 7 | 3.57/5 | 4.34/5 |
| Vol 8 | 3.49/5 | 4.31/5 |
| Vol 9 | 3.95/5 | 4.47/5 |
| Vol 10 | 3.53/5 | 4.28/5 |
| Vol 11 | 3.68/5 | 4.38/5 |
| Vol 12 | 3.54/5 | 4.34/5 |
| Overall | 3.65/5 | 4.47/5 |