| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 2.58/5 | 4.24/5 |
| Vol 2 | 2.61/5 | 4.28/5 |
| Vol 3 | 2.77/5 | 4.38/5 |
| Vol 4 | 3.67/5 | 4.43/5 |
| Vol 5 | 3.37/5 | 4.39/5 |
| Vol 6 | 2.80/5 | 4.32/5 |
| Vol 7 | 3.05/5 | 4.37/5 |
| Vol 8 | 3.40/5 | 4.39/5 |
| Vol 9 | 3.64/5 | 4.43/5 |
| Vol 10 | 2.98/5 | 4.36/5 |
| Vol 11 | 2.84/5 | 4.38/5 |
| Vol 12 | 3.21/5 | 4.36/5 |
| Vol 13 | 2.65/5 | 4.29/5 |
| Vol 14 | 3.88/5 | 4.46/5 |
| Vol 15 | 3.85/5 | 4.45/5 |
| Vol 16 | 2.79/5 | 4.35/5 |
| Vol 17 | 3.90/5 | 4.46/5 |
| Overall | 3.17/5 | 4.46/5 |