| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 3.60/5 | 4.57/5 |
| Vol 2 | 3.32/5 | 4.52/5 |
| Vol 3 | 2.77/5 | 4.42/5 |
| Vol 4 | 3.75/5 | 4.58/5 |
| Vol 5 | 2.53/5 | 4.40/5 |
| Vol 6 | 2.52/5 | 4.43/5 |
| Vol 7 | 2.85/5 | 4.44/5 |
| Vol 8 | 2.45/5 | 4.36/5 |
| Vol 9 | 2.35/5 | 4.36/5 |
| Vol 10 | 2.71/5 | 4.44/5 |
| Vol 11 | 2.67/5 | 4.41/5 |
| Vol 12 | 2.31/5 | 4.33/5 |
| Vol 13 | 3.10/5 | 4.46/5 |
| Vol 14 | 2.85/5 | 4.45/5 |
| Vol 15 | 2.42/5 | 4.21/5 |
| Vol 16 | 2.66/5 | 4.42/5 |
| Vol 17 | 3.38/5 | 4.55/5 |
| Vol 18 | 3.11/5 | 4.48/5 |
| Vol 19 | 3.15/5 | 4.53/5 |
| Vol 20 | 3.20/5 | 4.49/5 |
| Vol 21 | 3.32/5 | 4.50/5 |
| Vol 22 | 2.97/5 | 4.49/5 |
| Vol 23 | 2.93/5 | 4.41/5 |
| Overall | 2.91/5 | 4.58/5 |