| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 2.18/5 | 2.59/5 |
| Vol 2 | 2.20/5 | 2.70/5 |
| Vol 3 | 2.18/5 | 2.65/5 |
| Vol 4 | 2.18/5 | 2.61/5 |
| Vol 5 | 2.20/5 | 2.72/5 |
| Vol 6 | 2.19/5 | 2.59/5 |
| Vol 7 | 2.15/5 | 2.62/5 |
| Vol 8 | 2.21/5 | 3.04/5 |
| Vol 9 | 2.23/5 | 2.74/5 |
| Vol 10 | 2.20/5 | 2.67/5 |
| Vol 11 | 2.16/5 | 2.60/5 |
| Vol 12 | 2.12/5 | 2.64/5 |
| Vol 13 | 2.11/5 | 2.61/5 |
| Vol 14 | 2.15/5 | 2.70/5 |
| Vol 15 | 2.20/5 | 3.02/5 |
| Vol 16 | 2.22/5 | 2.83/5 |
| Vol 17 | 2.20/5 | 2.78/5 |
| Overall | 2.18/5 | 3.04/5 |