| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 2.79/5 | 3.96/5 |
| Vol 2 | 2.71/5 | 3.82/5 |
| Vol 3 | 2.66/5 | 3.72/5 |
| Vol 4 | 2.99/5 | 4.20/5 |
| Vol 5 | 2.61/5 | 3.69/5 |
| Vol 6 | 2.32/5 | 3.33/5 |
| Vol 7 | 2.72/5 | 3.92/5 |
| Vol 8 | 2.57/5 | 3.73/5 |
| Vol 9 | 2.54/5 | 3.70/5 |
| Vol 10 | 2.30/5 | 3.42/5 |
| Vol 11 | 2.53/5 | 3.75/5 |
| Vol 12 | 2.58/5 | 3.76/5 |
| Vol 13 | 2.79/5 | 3.82/5 |
| Vol 14 | 2.37/5 | 3.40/5 |
| Vol 15 | 2.39/5 | 3.78/5 |
| Vol 16 | 2.60/5 | 3.98/5 |
| Vol 17 | 2.31/5 | 3.52/5 |
| Vol 18 | 2.90/5 | 3.84/5 |
| Vol 19 | 2.87/5 | 3.95/5 |
| Vol 20 | 2.69/5 | 3.97/5 |
| Vol 21 | 2.51/5 | 3.69/5 |
| Vol 22 | 2.94/5 | 4.15/5 |
| Vol 23 | 2.94/5 | 4.15/5 |
| Overall | 2.64/5 | 4.20/5 |