| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 2.72/5 | 4.35/5 |
| Vol 2 | 3.89/5 | 4.43/5 |
| Vol 3 | 3.85/5 | 4.42/5 |
| Vol 4 | 4.01/5 | 4.48/5 |
| Vol 5 | 4.08/5 | 4.51/5 |
| Vol 6 | 4.01/5 | 4.48/5 |
| Vol 7 | 4.11/5 | 4.52/5 |
| Vol 8 | 4.08/5 | 4.51/5 |
| Vol 9 | 4.09/5 | 4.51/5 |
| Vol 10 | 4.08/5 | 4.51/5 |
| Vol 11 | 4.09/5 | 4.52/5 |
| Vol 12 | 4.08/5 | 4.51/5 |
| Vol 13 | 3.86/5 | 4.42/5 |
| Vol 14 | 3.87/5 | 4.43/5 |
| Vol 15 | 4.01/5 | 4.48/5 |
| Vol 16 | 4.08/5 | 4.51/5 |
| Vol 17 | 3.90/5 | 4.44/5 |
| Vol 18 | 4.12/5 | 4.53/5 |
| Vol 19 | 4.02/5 | 4.49/5 |
| Overall | 3.91/5 | 4.53/5 |