| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 2.88/5 | 4.57/5 |
| Vol 2 | 2.82/5 | 4.52/5 |
| Vol 3 | 3.14/5 | 4.66/5 |
| Vol 4 | 2.58/5 | 4.43/5 |
| Vol 5 | 3.05/5 | 4.66/5 |
| Vol 6 | 2.69/5 | 4.41/5 |
| Vol 7 | 2.93/5 | 4.55/5 |
| Vol 8 | 2.90/5 | 4.58/5 |
| Vol 9 | 3.23/5 | 4.68/5 |
| Vol 10 | 2.83/5 | 4.50/5 |
| Vol 11 | 2.89/5 | 4.50/5 |
| Vol 12 | 2.91/5 | 4.55/5 |
| Vol 13 | 2.58/5 | 4.45/5 |
| Vol 14 | 2.62/5 | 4.39/5 |
| Vol 15 | 2.96/5 | 4.62/5 |
| Vol 16 | 2.74/5 | 4.44/5 |
| Vol 17 | 2.52/5 | 4.26/5 |
| Vol 18 | 2.79/5 | 4.56/5 |
| Vol 19 | 2.73/5 | 4.50/5 |
| Vol 20 | 2.94/5 | 4.67/5 |
| Overall | 2.84/5 | 4.68/5 |