| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 2.91/5 | 4.62/5 |
| Vol 2 | 2.91/5 | 4.52/5 |
| Vol 3 | 3.06/5 | 4.74/5 |
| Vol 4 | 2.79/5 | 4.54/5 |
| Vol 5 | 3.06/5 | 4.69/5 |
| Vol 6 | 3.08/5 | 4.62/5 |
| Vol 7 | 3.05/5 | 4.68/5 |
| Vol 8 | 3.11/5 | 4.62/5 |
| Vol 9 | 3.38/5 | 4.67/5 |
| Vol 10 | 2.96/5 | 4.63/5 |
| Vol 11 | 3.10/5 | 4.72/5 |
| Vol 12 | 3.03/5 | 4.69/5 |
| Vol 13 | 3.27/5 | 4.74/5 |
| Vol 14 | 3.33/5 | 4.75/5 |
| Overall | 3.07/5 | 4.75/5 |