| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 2.50/5 | 4.29/5 |
| Vol 2 | 2.34/5 | 4.41/5 |
| Vol 3 | 2.51/5 | 4.52/5 |
| Vol 4 | 2.62/5 | 4.41/5 |
| Vol 5 | 2.66/5 | 4.57/5 |
| Vol 6 | 2.62/5 | 4.52/5 |
| Vol 7 | 2.49/5 | 4.67/5 |
| Vol 8 | 2.32/5 | 4.52/5 |
| Vol 9 | 2.31/5 | 3.71/5 |
| Vol 10 | 2.34/5 | 4.29/5 |
| Vol 11 | 2.38/5 | 4.29/5 |
| Vol 12 | 2.91/5 | 4.76/5 |
| Vol 13 | 2.44/5 | 4.38/5 |
| Vol 14 | 2.33/5 | 3.55/5 |
| Vol 15 | 2.50/5 | 4.29/5 |
| Vol 16 | 2.26/5 | 3.95/5 |
| Vol 17 | 2.38/5 | 4.25/5 |
| Vol 18 | 2.51/5 | 3.82/5 |
| Vol 19 | 2.78/5 | 4.52/5 |
| Vol 20 | 2.41/5 | 4.23/5 |
| Vol 21 | 2.70/5 | 4.57/5 |
| Vol 22 | 2.73/5 | 4.65/5 |
| Overall | 2.50/5 | 4.76/5 |