| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 2.57/5 | 4.54/5 |
| Vol 2 | 2.80/5 | 4.54/5 |
| Vol 3 | 2.94/5 | 4.61/5 |
| Vol 4 | 3.47/5 | 4.74/5 |
| Vol 5 | 2.65/5 | 4.57/5 |
| Vol 6 | 2.81/5 | 4.54/5 |
| Vol 7 | 2.88/5 | 4.52/5 |
| Vol 8 | 3.05/5 | 4.68/5 |
| Vol 9 | 2.80/5 | 4.58/5 |
| Vol 10 | 2.88/5 | 4.47/5 |
| Vol 11 | 3.00/5 | 4.62/5 |
| Vol 12 | 3.11/5 | 4.63/5 |
| Vol 13 | 2.57/5 | 4.36/5 |
| Vol 14 | 3.11/5 | 4.74/5 |
| Vol 15 | 3.26/5 | 4.65/5 |
| Vol 16 | 2.83/5 | 4.55/5 |
| Overall | 2.91/5 | 4.74/5 |