| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 3.38/5 | 4.58/5 |
| Vol 2 | 3.52/5 | 4.57/5 |
| Vol 3 | 3.17/5 | 4.50/5 |
| Vol 4 | 2.95/5 | 4.49/5 |
| Vol 5 | 2.86/5 | 4.51/5 |
| Vol 6 | 3.02/5 | 4.45/5 |
| Vol 7 | 3.24/5 | 4.58/5 |
| Vol 8 | 2.95/5 | 4.46/5 |
| Vol 9 | 4.03/5 | 4.63/5 |
| Vol 10 | 3.15/5 | 4.58/5 |
| Vol 11 | 3.02/5 | 4.51/5 |
| Vol 12 | 2.70/5 | 4.35/5 |
| Overall | 3.16/5 | 4.63/5 |