| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 3.88/5 | 4.58/5 |
| Vol 2 | 3.74/5 | 4.54/5 |
| Vol 3 | 3.79/5 | 4.56/5 |
| Vol 4 | 3.63/5 | 4.51/5 |
| Vol 5 | 3.93/5 | 4.59/5 |
| Vol 6 | 4.03/5 | 4.61/5 |
| Vol 7 | 4.12/5 | 4.65/5 |
| Vol 8 | 3.65/5 | 4.53/5 |
| Vol 9 | 3.67/5 | 4.53/5 |
| Vol 10 | 3.76/5 | 4.55/5 |
| Vol 11 | 3.61/5 | 4.52/5 |
| Vol 12 | 3.83/5 | 4.58/5 |
| Vol 13 | 4.01/5 | 4.61/5 |
| Vol 14 | 3.92/5 | 4.58/5 |
| Vol 15 | 3.70/5 | 4.55/5 |
| Vol 16 | 3.61/5 | 4.52/5 |
| Vol 17 | 3.80/5 | 4.58/5 |
| Vol 18 | 3.50/5 | 4.51/5 |
| Overall | 3.79/5 | 4.65/5 |