| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 2.51/5 | 3.51/5 |
| Vol 2 | 2.59/5 | 3.53/5 |
| Vol 3 | 2.50/5 | 3.54/5 |
| Vol 4 | 2.74/5 | 3.66/5 |
| Vol 5 | 2.20/5 | 3.29/5 |
| Vol 6 | 2.31/5 | 3.36/5 |
| Vol 7 | 2.41/5 | 3.55/5 |
| Vol 8 | 2.23/5 | 3.41/5 |
| Vol 9 | 2.33/5 | 3.52/5 |
| Vol 10 | 2.54/5 | 3.60/5 |
| Vol 11 | 2.41/5 | 3.71/5 |
| Vol 12 | 2.70/5 | 3.73/5 |
| Vol 13 | 2.35/5 | 3.45/5 |
| Vol 14 | 2.74/5 | 3.86/5 |
| Vol 15 | 2.66/5 | 3.77/5 |
| Vol 16 | 2.21/5 | 3.25/5 |
| Vol 17 | 2.53/5 | 3.53/5 |
| Vol 18 | 2.66/5 | 3.63/5 |
| Vol 19 | 2.47/5 | 3.59/5 |
| Vol 20 | 2.41/5 | 3.60/5 |
| Vol 21 | 2.62/5 | 3.74/5 |
| Vol 22 | 2.67/5 | 3.67/5 |
| Overall | 2.49/5 | 3.86/5 |