| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 2.83/5 | 4.39/5 |
| Vol 2 | 4.10/5 | 4.63/5 |
| Vol 3 | 4.17/5 | 4.66/5 |
| Vol 4 | 4.09/5 | 4.62/5 |
| Vol 5 | 4.12/5 | 4.64/5 |
| Vol 6 | 4.10/5 | 4.63/5 |
| Vol 7 | 3.71/5 | 4.54/5 |
| Vol 8 | 3.69/5 | 4.56/5 |
| Vol 9 | 4.01/5 | 4.59/5 |
| Vol 10 | 3.34/5 | 4.49/5 |
| Vol 11 | 3.99/5 | 4.59/5 |
| Vol 12 | 4.03/5 | 4.60/5 |
| Vol 13 | 4.05/5 | 4.61/5 |
| Vol 14 | 3.18/5 | 4.50/5 |
| Vol 15 | 3.84/5 | 4.56/5 |
| Vol 16 | 3.54/5 | 4.52/5 |
| Overall | 3.79/5 | 4.66/5 |