| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 2.15/5 | 4.28/5 |
| Vol 2 | 1.60/5 | 3.95/5 |
| Vol 3 | 1.29/5 | 3.59/5 |
| Vol 4 | 1.49/5 | 3.35/5 |
| Vol 5 | 2.10/5 | 3.83/5 |
| Vol 6 | 2.85/5 | 4.32/5 |
| Vol 7 | 1.23/5 | 2.75/5 |
| Vol 8 | 2.85/5 | 4.63/5 |
| Vol 9 | 1.97/5 | 4.52/5 |
| Vol 10 | 1.75/5 | 4.35/5 |
| Vol 11 | 2.85/5 | 4.55/5 |
| Vol 12 | 2.85/5 | 4.67/5 |
| Vol 13 | 1.85/5 | 4.50/5 |
| Vol 14 | 2.02/5 | 4.35/5 |
| Vol 15 | 1.92/5 | 4.15/5 |
| Vol 16 | 1.28/5 | 4.25/5 |
| Vol 17 | 3.10/5 | 4.68/5 |
| Vol 18 | 1.85/5 | 4.65/5 |
| Overall | 2.04/5 | 4.68/5 |