| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 2.90/5 | 4.65/5 |
| Vol 2 | 2.78/5 | 4.65/5 |
| Vol 3 | 2.57/5 | 4.58/5 |
| Vol 4 | 2.48/5 | 4.52/5 |
| Vol 5 | 2.86/5 | 4.67/5 |
| Vol 6 | 2.24/5 | 4.32/5 |
| Vol 7 | 2.78/5 | 4.63/5 |
| Vol 8 | 2.72/5 | 4.55/5 |
| Vol 9 | 3.15/5 | 4.74/5 |
| Vol 10 | 3.01/5 | 4.73/5 |
| Vol 11 | 2.88/5 | 4.62/5 |
| Vol 12 | 2.46/5 | 4.45/5 |
| Vol 13 | 2.96/5 | 4.72/5 |
| Vol 14 | 2.20/5 | 4.49/5 |
| Vol 15 | 2.65/5 | 4.58/5 |
| Vol 16 | 2.15/5 | 4.45/5 |
| Vol 17 | 2.89/5 | 4.66/5 |
| Vol 18 | 2.78/5 | 4.29/5 |
| Overall | 2.70/5 | 4.74/5 |