| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 2.77/5 | 3.68/5 |
| Vol 2 | 2.75/5 | 3.74/5 |
| Vol 3 | 2.69/5 | 3.79/5 |
| Vol 4 | 2.71/5 | 3.77/5 |
| Vol 5 | 2.72/5 | 3.67/5 |
| Vol 6 | 2.71/5 | 3.63/5 |
| Vol 7 | 2.57/5 | 3.07/5 |
| Vol 8 | 2.97/5 | 3.87/5 |
| Vol 9 | 2.68/5 | 3.67/5 |
| Vol 10 | 2.79/5 | 3.72/5 |
| Vol 11 | 2.76/5 | 3.69/5 |
| Vol 12 | 2.88/5 | 3.87/5 |
| Vol 13 | 2.89/5 | 3.84/5 |
| Vol 14 | 2.87/5 | 3.84/5 |
| Vol 15 | 2.82/5 | 3.84/5 |
| Overall | 2.77/5 | 3.87/5 |