| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 2.47/5 | 4.09/5 |
| Vol 2 | 2.67/5 | 4.09/5 |
| Vol 3 | 2.19/5 | 3.65/5 |
| Vol 4 | 2.51/5 | 3.71/5 |
| Vol 5 | 2.25/5 | 3.69/5 |
| Vol 6 | 2.51/5 | 3.87/5 |
| Vol 7 | 2.09/5 | 3.19/5 |
| Vol 8 | 2.39/5 | 3.71/5 |
| Vol 9 | 2.22/5 | 3.48/5 |
| Vol 10 | 2.18/5 | 3.65/5 |
| Vol 11 | 2.36/5 | 4.00/5 |
| Vol 12 | 2.29/5 | 3.75/5 |
| Vol 13 | 2.46/5 | 4.03/5 |
| Vol 14 | 2.17/5 | 3.79/5 |
| Vol 15 | 2.90/5 | 4.14/5 |
| Vol 16 | 2.74/5 | 3.95/5 |
| Vol 17 | 2.51/5 | 4.09/5 |
| Vol 18 | 2.57/5 | 4.17/5 |
| Vol 19 | 2.31/5 | 3.94/5 |
| Vol 20 | 2.15/5 | 3.68/5 |
| Vol 21 | 2.12/5 | 3.62/5 |
| Vol 22 | 2.56/5 | 4.06/5 |
| Vol 23 | 2.45/5 | 4.32/5 |
| Overall | 2.39/5 | 4.32/5 |