| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 4.13/5 | 4.65/5 |
| Vol 2 | 3.98/5 | 4.60/5 |
| Vol 3 | 4.08/5 | 4.63/5 |
| Vol 4 | 3.64/5 | 4.47/5 |
| Vol 5 | 3.89/5 | 4.57/5 |
| Vol 6 | 3.77/5 | 4.52/5 |
| Vol 7 | 3.78/5 | 4.55/5 |
| Vol 8 | 3.79/5 | 4.53/5 |
| Vol 9 | 3.88/5 | 4.57/5 |
| Vol 10 | 3.98/5 | 4.60/5 |
| Vol 11 | 3.83/5 | 4.54/5 |
| Vol 12 | 3.86/5 | 4.57/5 |
| Vol 13 | 3.73/5 | 4.51/5 |
| Overall | 3.87/5 | 4.65/5 |