| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 2.69/5 | 3.97/5 |
| Vol 2 | 2.55/5 | 3.91/5 |
| Vol 3 | 2.60/5 | 3.80/5 |
| Vol 4 | 2.51/5 | 3.68/5 |
| Vol 5 | 2.50/5 | 3.90/5 |
| Vol 6 | 2.56/5 | 3.81/5 |
| Vol 7 | 2.25/5 | 3.62/5 |
| Vol 8 | 2.52/5 | 3.73/5 |
| Vol 9 | 2.43/5 | 3.57/5 |
| Vol 10 | 2.53/5 | 4.03/5 |
| Vol 11 | 2.71/5 | 4.01/5 |
| Vol 12 | 2.74/5 | 3.96/5 |
| Vol 13 | 2.72/5 | 4.12/5 |
| Vol 14 | 2.73/5 | 3.99/5 |
| Vol 15 | 2.65/5 | 4.02/5 |
| Vol 16 | 2.66/5 | 3.81/5 |
| Vol 17 | 2.78/5 | 4.25/5 |
| Vol 18 | 2.48/5 | 4.04/5 |
| Vol 19 | 2.44/5 | 3.79/5 |
| Overall | 2.58/5 | 4.25/5 |