| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 1.68/5 | 2.89/5 |
| Vol 2 | 1.63/5 | 2.31/5 |
| Vol 3 | 1.61/5 | 2.33/5 |
| Vol 4 | 1.53/5 | 1.88/5 |
| Vol 5 | 1.63/5 | 2.39/5 |
| Vol 6 | 1.54/5 | 1.89/5 |
| Vol 7 | 1.56/5 | 1.92/5 |
| Vol 8 | 1.71/5 | 2.65/5 |
| Vol 9 | 1.74/5 | 2.79/5 |
| Vol 10 | 1.69/5 | 2.63/5 |
| Vol 11 | 1.61/5 | 2.07/5 |
| Vol 12 | 1.59/5 | 2.03/5 |
| Vol 13 | 1.65/5 | 2.51/5 |
| Vol 14 | 1.69/5 | 2.84/5 |
| Vol 15 | 1.54/5 | 1.93/5 |
| Vol 16 | 1.59/5 | 2.00/5 |
| Vol 17 | 1.63/5 | 2.27/5 |
| Vol 18 | 1.73/5 | 2.73/5 |
| Vol 19 | 1.92/5 | 3.30/5 |
| Vol 20 | 2.21/5 | 3.49/5 |
| Vol 21 | 1.73/5 | 2.97/5 |
| Vol 22 | 1.84/5 | 3.30/5 |
| Overall | 1.68/5 | 3.49/5 |