| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 2.50/5 | 4.07/5 |
| Vol 2 | 2.33/5 | 3.55/5 |
| Vol 3 | 2.33/5 | 3.13/5 |
| Vol 4 | 2.18/5 | 3.33/5 |
| Vol 5 | 2.44/5 | 3.97/5 |
| Vol 6 | 2.40/5 | 3.93/5 |
| Vol 7 | 2.22/5 | 3.18/5 |
| Vol 8 | 2.47/5 | 4.00/5 |
| Vol 9 | 2.50/5 | 4.22/5 |
| Vol 10 | 2.11/5 | 3.55/5 |
| Vol 11 | 2.27/5 | 3.72/5 |
| Vol 12 | 2.14/5 | 4.32/5 |
| Vol 13 | 2.50/5 | 4.50/5 |
| Vol 14 | 2.62/5 | 4.47/5 |
| Overall | 2.36/5 | 4.50/5 |