| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 3.83/5 | 4.57/5 |
| Vol 2 | 3.91/5 | 4.58/5 |
| Vol 3 | 3.84/5 | 4.56/5 |
| Vol 4 | 3.90/5 | 4.57/5 |
| Vol 5 | 3.95/5 | 4.59/5 |
| Vol 6 | 3.69/5 | 4.47/5 |
| Vol 7 | 3.75/5 | 4.52/5 |
| Vol 8 | 3.67/5 | 4.49/5 |
| Vol 9 | 4.13/5 | 4.65/5 |
| Vol 10 | 3.71/5 | 4.46/5 |
| Vol 11 | 3.86/5 | 4.56/5 |
| Vol 12 | 3.72/5 | 4.52/5 |
| Overall | 3.83/5 | 4.65/5 |