| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 2.72/5 | 3.64/5 |
| Vol 2 | 2.68/5 | 3.78/5 |
| Vol 3 | 2.85/5 | 3.81/5 |
| Vol 4 | 2.62/5 | 3.70/5 |
| Vol 5 | 2.61/5 | 3.73/5 |
| Vol 6 | 2.78/5 | 3.90/5 |
| Vol 7 | 2.77/5 | 3.81/5 |
| Vol 8 | 2.55/5 | 3.60/5 |
| Vol 9 | 2.75/5 | 3.75/5 |
| Vol 10 | 2.63/5 | 3.81/5 |
| Vol 11 | 2.78/5 | 3.87/5 |
| Vol 12 | 3.22/5 | 4.14/5 |
| Vol 13 | 2.52/5 | 3.66/5 |
| Vol 14 | 3.05/5 | 4.05/5 |
| Vol 15 | 2.68/5 | 3.76/5 |
| Vol 16 | 3.02/5 | 3.81/5 |
| Vol 17 | 2.81/5 | 3.99/5 |
| Vol 18 | 2.82/5 | 4.08/5 |
| Vol 19 | 3.11/5 | 4.13/5 |
| Vol 20 | 3.14/5 | 4.19/5 |
| Vol 21 | 3.41/5 | 4.28/5 |
| Vol 22 | 2.70/5 | 3.89/5 |
| Vol 23 | 2.81/5 | 4.07/5 |
| Vol 24 | 3.06/5 | 4.04/5 |
| Vol 25 | 2.97/5 | 4.13/5 |
| Overall | 2.85/5 | 4.28/5 |