| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 2.64/5 | 4.22/5 |
| Vol 2 | 2.64/5 | 4.34/5 |
| Vol 3 | 2.63/5 | 3.94/5 |
| Vol 4 | 2.69/5 | 4.25/5 |
| Vol 5 | 2.58/5 | 4.40/5 |
| Vol 6 | 2.54/5 | 4.03/5 |
| Vol 7 | 2.74/5 | 4.19/5 |
| Vol 8 | 2.67/5 | 4.30/5 |
| Vol 9 | 2.67/5 | 4.36/5 |
| Vol 10 | 2.53/5 | 4.19/5 |
| Vol 11 | 2.76/5 | 4.32/5 |
| Vol 12 | 2.70/5 | 4.45/5 |
| Vol 13 | 2.52/5 | 4.13/5 |
| Vol 14 | 2.38/5 | 4.19/5 |
| Vol 15 | 2.65/5 | 4.30/5 |
| Vol 16 | 2.48/5 | 4.13/5 |
| Overall | 2.62/5 | 4.45/5 |