| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 2.25/5 | 4.13/5 |
| Vol 2 | 2.14/5 | 4.26/5 |
| Vol 3 | 3.36/5 | 4.49/5 |
| Vol 4 | 2.96/5 | 4.47/5 |
| Vol 5 | 3.70/5 | 4.56/5 |
| Vol 6 | 3.70/5 | 4.55/5 |
| Vol 7 | 3.18/5 | 4.47/5 |
| Vol 8 | 3.29/5 | 4.54/5 |
| Vol 9 | 3.33/5 | 4.51/5 |
| Vol 10 | 2.57/5 | 4.26/5 |
| Vol 11 | 2.88/5 | 4.45/5 |
| Vol 12 | 2.73/5 | 4.28/5 |
| Vol 13 | 3.68/5 | 4.56/5 |
| Vol 14 | 3.43/5 | 4.52/5 |
| Vol 15 | 3.41/5 | 4.48/5 |
| Vol 16 | 3.62/5 | 4.53/5 |
| Vol 17 | 3.42/5 | 4.47/5 |
| Overall | 3.32/5 | 4.56/5 |