| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 3.14/5 | 4.02/5 |
| Vol 2 | 3.33/5 | 4.22/5 |
| Vol 3 | 3.39/5 | 4.29/5 |
| Vol 4 | 3.31/5 | 4.17/5 |
| Vol 5 | 3.22/5 | 4.20/5 |
| Vol 6 | 3.40/5 | 4.34/5 |
| Vol 7 | 3.40/5 | 4.29/5 |
| Vol 8 | 3.41/5 | 4.23/5 |
| Vol 9 | 3.32/5 | 4.33/5 |
| Vol 10 | 3.36/5 | 4.22/5 |
| Vol 11 | 3.15/5 | 4.15/5 |
| Vol 12 | 3.28/5 | 4.21/5 |
| Vol 13 | 3.40/5 | 4.15/5 |
| Overall | 3.32/5 | 4.34/5 |