| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 2.78/5 | 4.30/5 |
| Vol 2 | 2.78/5 | 4.36/5 |
| Vol 3 | 2.72/5 | 4.33/5 |
| Vol 4 | 2.65/5 | 4.31/5 |
| Vol 5 | 3.26/5 | 4.45/5 |
| Vol 6 | 2.87/5 | 4.37/5 |
| Vol 7 | 3.09/5 | 4.44/5 |
| Vol 8 | 3.25/5 | 4.53/5 |
| Vol 9 | 3.07/5 | 4.33/5 |
| Vol 10 | 2.80/5 | 4.13/5 |
| Vol 11 | 3.07/5 | 4.50/5 |
| Overall | 2.95/5 | 4.53/5 |