| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 3.68/5 | 4.30/5 |
| Vol 2 | 3.54/5 | 4.27/5 |
| Vol 3 | 3.29/5 | 4.16/5 |
| Vol 4 | 3.71/5 | 4.30/5 |
| Vol 5 | 3.56/5 | 4.28/5 |
| Vol 6 | 3.70/5 | 4.31/5 |
| Vol 7 | 3.74/5 | 4.31/5 |
| Vol 8 | 3.64/5 | 4.29/5 |
| Vol 9 | 3.68/5 | 4.30/5 |
| Vol 10 | 3.86/5 | 4.36/5 |
| Vol 11 | 3.47/5 | 4.25/5 |
| Vol 12 | 3.51/5 | 4.25/5 |
| Overall | 3.62/5 | 4.36/5 |