| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 2.34/5 | 4.36/5 |
| Vol 2 | 2.43/5 | 4.24/5 |
| Vol 3 | 2.46/5 | 3.95/5 |
| Vol 4 | 2.43/5 | 4.47/5 |
| Vol 5 | 2.18/5 | 4.29/5 |
| Vol 6 | 2.43/5 | 4.36/5 |
| Vol 7 | 2.47/5 | 4.51/5 |
| Vol 8 | 2.41/5 | 4.36/5 |
| Vol 9 | 2.60/5 | 4.32/5 |
| Vol 10 | 2.30/5 | 4.29/5 |
| Vol 11 | 2.21/5 | 4.36/5 |
| Vol 12 | 2.38/5 | 4.45/5 |
| Vol 13 | 2.10/5 | 4.40/5 |
| Vol 14 | 2.27/5 | 4.45/5 |
| Vol 15 | 2.24/5 | 3.72/5 |
| Vol 16 | 2.56/5 | 4.38/5 |
| Vol 17 | 2.61/5 | 4.42/5 |
| Vol 18 | 2.51/5 | 4.42/5 |
| Overall | 2.39/5 | 4.51/5 |