| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 2.25/5 | 4.63/5 |
| Vol 2 | 2.30/5 | 4.47/5 |
| Vol 3 | 2.30/5 | 4.57/5 |
| Vol 4 | 2.11/5 | 4.17/5 |
| Vol 5 | 2.47/5 | 4.49/5 |
| Vol 6 | 2.21/5 | 3.47/5 |
| Vol 7 | 2.42/5 | 4.47/5 |
| Vol 8 | 2.25/5 | 4.18/5 |
| Vol 9 | 2.36/5 | 4.49/5 |
| Vol 10 | 2.21/5 | 3.25/5 |
| Vol 11 | 2.25/5 | 3.87/5 |
| Vol 12 | 2.33/5 | 4.33/5 |
| Vol 13 | 2.52/5 | 4.47/5 |
| Overall | 2.31/5 | 4.63/5 |