| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 2.77/5 | 3.77/5 |
| Vol 2 | 2.82/5 | 3.84/5 |
| Vol 3 | 2.81/5 | 3.84/5 |
| Vol 4 | 2.76/5 | 3.74/5 |
| Vol 5 | 2.73/5 | 3.72/5 |
| Vol 6 | 2.63/5 | 3.68/5 |
| Vol 7 | 2.60/5 | 3.72/5 |
| Vol 8 | 2.53/5 | 3.60/5 |
| Vol 9 | 2.86/5 | 4.06/5 |
| Vol 10 | 2.83/5 | 3.78/5 |
| Vol 11 | 2.77/5 | 3.70/5 |
| Vol 12 | 2.67/5 | 3.91/5 |
| Vol 13 | 2.63/5 | 3.63/5 |
| Vol 14 | 2.71/5 | 3.94/5 |
| Vol 15 | 2.83/5 | 3.91/5 |
| Vol 16 | 2.56/5 | 3.58/5 |
| Overall | 2.72/5 | 4.06/5 |