| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 3.72/5 | 4.46/5 |
| Vol 2 | 3.79/5 | 4.49/5 |
| Vol 3 | 3.75/5 | 4.46/5 |
| Vol 4 | 3.89/5 | 4.53/5 |
| Vol 5 | 4.04/5 | 4.58/5 |
| Vol 6 | 3.88/5 | 4.52/5 |
| Vol 7 | 4.04/5 | 4.58/5 |
| Vol 8 | 4.03/5 | 4.58/5 |
| Vol 9 | 3.89/5 | 4.53/5 |
| Vol 10 | 4.06/5 | 4.59/5 |
| Vol 11 | 4.00/5 | 4.57/5 |
| Overall | 3.93/5 | 4.59/5 |