| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 3.78/5 | 4.52/5 |
| Vol 2 | 3.85/5 | 4.55/5 |
| Vol 3 | 3.81/5 | 4.52/5 |
| Vol 4 | 3.95/5 | 4.59/5 |
| Vol 5 | 4.10/5 | 4.64/5 |
| Vol 6 | 3.94/5 | 4.58/5 |
| Vol 7 | 4.10/5 | 4.64/5 |
| Vol 8 | 4.09/5 | 4.64/5 |
| Vol 9 | 3.95/5 | 4.59/5 |
| Vol 10 | 4.12/5 | 4.65/5 |
| Vol 11 | 4.06/5 | 4.63/5 |
| Overall | 3.99/5 | 4.65/5 |