| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 2.58/5 | 3.24/5 |
| Vol 2 | 2.57/5 | 3.09/5 |
| Vol 3 | 2.58/5 | 3.70/5 |
| Vol 4 | 2.60/5 | 3.66/5 |
| Vol 5 | 2.65/5 | 3.70/5 |
| Vol 6 | 2.62/5 | 3.56/5 |
| Vol 7 | 2.61/5 | 3.56/5 |
| Vol 8 | 2.69/5 | 3.69/5 |
| Vol 9 | 2.50/5 | 3.58/5 |
| Vol 10 | 2.54/5 | 3.44/5 |
| Vol 11 | 2.53/5 | 3.32/5 |
| Vol 12 | 2.60/5 | 3.55/5 |
| Vol 13 | 2.52/5 | 3.09/5 |
| Vol 14 | 2.50/5 | 3.06/5 |
| Vol 15 | 2.62/5 | 3.82/5 |
| Vol 16 | 2.50/5 | 3.53/5 |
| Vol 17 | 2.55/5 | 3.57/5 |
| Overall | 2.57/5 | 3.82/5 |