| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 3.00/5 | 4.55/5 |
| Vol 2 | 4.00/5 | 4.60/5 |
| Vol 3 | 3.50/5 | 4.59/5 |
| Vol 4 | 4.04/5 | 4.62/5 |
| Vol 5 | 4.19/5 | 4.68/5 |
| Vol 6 | 4.12/5 | 4.65/5 |
| Vol 7 | 4.22/5 | 4.69/5 |
| Vol 8 | 4.16/5 | 4.67/5 |
| Vol 9 | 4.16/5 | 4.66/5 |
| Vol 10 | 4.23/5 | 4.69/5 |
| Vol 11 | 4.27/5 | 4.71/5 |
| Vol 12 | 4.24/5 | 4.70/5 |
| Overall | 4.01/5 | 4.71/5 |