| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 3.20/5 | 4.59/5 |
| Vol 2 | 3.34/5 | 4.67/5 |
| Vol 3 | 3.04/5 | 4.60/5 |
| Vol 4 | 3.24/5 | 4.62/5 |
| Vol 5 | 2.99/5 | 4.62/5 |
| Vol 6 | 3.14/5 | 4.65/5 |
| Vol 7 | 3.06/5 | 4.47/5 |
| Vol 8 | 3.03/5 | 4.50/5 |
| Vol 9 | 2.74/5 | 4.41/5 |
| Vol 10 | 3.12/5 | 4.61/5 |
| Vol 11 | 2.94/5 | 4.58/5 |
| Vol 12 | 2.87/5 | 4.49/5 |
| Vol 13 | 3.04/5 | 4.49/5 |
| Vol 14 | 2.84/5 | 4.58/5 |
| Vol 15 | 3.13/5 | 4.56/5 |
| Vol 16 | 2.98/5 | 4.50/5 |
| Vol 17 | 3.15/5 | 4.55/5 |
| Vol 18 | 3.35/5 | 4.68/5 |
| Vol 19 | 3.13/5 | 4.61/5 |
| Overall | 3.06/5 | 4.68/5 |