| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 3.07/5 | 4.15/5 |
| Vol 2 | 3.24/5 | 4.12/5 |
| Vol 3 | 3.11/5 | 4.08/5 |
| Vol 4 | 3.34/5 | 4.29/5 |
| Vol 5 | 3.06/5 | 4.13/5 |
| Vol 6 | 3.47/5 | 4.33/5 |
| Vol 7 | 3.63/5 | 4.40/5 |
| Vol 8 | 3.52/5 | 4.34/5 |
| Vol 9 | 3.31/5 | 4.28/5 |
| Vol 10 | 3.32/5 | 4.29/5 |
| Vol 11 | 3.56/5 | 4.41/5 |
| Vol 12 | 3.44/5 | 4.32/5 |
| Vol 13 | 3.49/5 | 4.31/5 |
| Vol 14 | 3.54/5 | 4.35/5 |
| Vol 15 | 3.59/5 | 4.41/5 |
| Vol 16 | 3.83/5 | 4.49/5 |
| Vol 17 | 3.65/5 | 4.43/5 |
| Vol 18 | 3.52/5 | 4.39/5 |
| Vol 19 | 3.57/5 | 4.39/5 |
| Vol 20 | 3.57/5 | 4.40/5 |
| Vol 21 | 3.52/5 | 4.39/5 |
| Vol 22 | 3.53/5 | 4.39/5 |
| Overall | 3.46/5 | 4.49/5 |