| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 2.24/5 | 4.27/5 |
| Vol 2 | 2.06/5 | 4.27/5 |
| Vol 3 | 1.99/5 | 4.49/5 |
| Vol 4 | 2.27/5 | 4.41/5 |
| Vol 5 | 2.31/5 | 4.45/5 |
| Vol 6 | 2.08/5 | 4.36/5 |
| Vol 7 | 1.81/5 | 4.24/5 |
| Vol 8 | 2.34/5 | 4.47/5 |
| Vol 9 | 2.05/5 | 4.38/5 |
| Vol 10 | 1.95/5 | 4.02/5 |
| Vol 11 | 2.30/5 | 4.33/5 |
| Vol 12 | 2.15/5 | 4.12/5 |
| Overall | 2.14/5 | 4.49/5 |