| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 4.00/5 | 4.60/5 |
| Vol 2 | 4.00/5 | 4.60/5 |
| Vol 3 | 3.76/5 | 4.55/5 |
| Vol 4 | 4.01/5 | 4.61/5 |
| Vol 5 | 4.06/5 | 4.62/5 |
| Vol 6 | 4.05/5 | 4.62/5 |
| Vol 7 | 3.68/5 | 4.57/5 |
| Vol 8 | 3.54/5 | 4.53/5 |
| Vol 9 | 3.95/5 | 4.59/5 |
| Vol 10 | 3.52/5 | 4.54/5 |
| Vol 11 | 3.75/5 | 4.57/5 |
| Vol 12 | 3.26/5 | 4.48/5 |
| Overall | 3.80/5 | 4.62/5 |