| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 2.86/5 | 4.23/5 |
| Vol 2 | 2.94/5 | 4.45/5 |
| Vol 3 | 2.79/5 | 4.41/5 |
| Vol 4 | 3.07/5 | 4.52/5 |
| Vol 5 | 2.86/5 | 4.47/5 |
| Vol 6 | 2.82/5 | 4.40/5 |
| Vol 7 | 3.36/5 | 4.63/5 |
| Vol 8 | 3.07/5 | 4.52/5 |
| Vol 9 | 3.52/5 | 4.63/5 |
| Vol 10 | 3.09/5 | 4.52/5 |
| Vol 11 | 2.90/5 | 4.49/5 |
| Vol 12 | 3.41/5 | 4.67/5 |
| Vol 13 | 3.93/5 | 4.70/5 |
| Vol 14 | 3.03/5 | 4.64/5 |
| Vol 15 | 3.67/5 | 4.69/5 |
| Vol 16 | 3.94/5 | 4.70/5 |
| Overall | 3.21/5 | 4.70/5 |