| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 3.22/5 | 3.97/5 |
| Vol 2 | 3.14/5 | 3.89/5 |
| Vol 3 | 3.09/5 | 3.95/5 |
| Vol 4 | 2.99/5 | 3.81/5 |
| Vol 5 | 3.08/5 | 3.97/5 |
| Vol 6 | 2.97/5 | 3.81/5 |
| Vol 7 | 3.09/5 | 4.00/5 |
| Vol 8 | 2.94/5 | 3.87/5 |
| Vol 9 | 3.15/5 | 4.03/5 |
| Vol 10 | 3.30/5 | 4.03/5 |
| Vol 11 | 3.27/5 | 4.05/5 |
| Vol 12 | 3.33/5 | 4.09/5 |
| Vol 13 | 3.19/5 | 4.02/5 |
| Vol 14 | 3.19/5 | 4.07/5 |
| Overall | 3.14/5 | 4.09/5 |