| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 3.69/5 | 4.40/5 |
| Vol 2 | 3.52/5 | 4.33/5 |
| Vol 3 | 3.69/5 | 4.39/5 |
| Vol 4 | 3.75/5 | 4.42/5 |
| Vol 5 | 3.63/5 | 4.37/5 |
| Vol 6 | 3.70/5 | 4.41/5 |
| Vol 7 | 3.70/5 | 4.40/5 |
| Vol 8 | 3.74/5 | 4.42/5 |
| Vol 9 | 3.52/5 | 4.31/5 |
| Vol 10 | 3.61/5 | 4.37/5 |
| Vol 11 | 3.80/5 | 4.44/5 |
| Vol 12 | 3.49/5 | 4.29/5 |
| Overall | 3.65/5 | 4.44/5 |