| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 2.96/5 | 4.07/5 |
| Vol 2 | 3.03/5 | 4.01/5 |
| Vol 3 | 2.83/5 | 3.93/5 |
| Vol 4 | 2.91/5 | 4.15/5 |
| Vol 5 | 2.68/5 | 3.88/5 |
| Vol 6 | 2.85/5 | 4.02/5 |
| Vol 7 | 2.80/5 | 3.99/5 |
| Vol 8 | 2.96/5 | 4.24/5 |
| Vol 9 | 2.88/5 | 4.06/5 |
| Vol 10 | 2.85/5 | 4.15/5 |
| Vol 11 | 3.22/5 | 4.31/5 |
| Vol 12 | 3.02/5 | 4.12/5 |
| Vol 13 | 3.03/5 | 4.39/5 |
| Vol 14 | 2.94/5 | 4.21/5 |
| Vol 15 | 2.97/5 | 4.41/5 |
| Vol 16 | 2.98/5 | 4.35/5 |
| Vol 17 | 2.96/5 | 4.09/5 |
| Vol 18 | 2.88/5 | 4.09/5 |
| Vol 19 | 2.87/5 | 4.24/5 |
| Vol 20 | 2.99/5 | 4.53/5 |
| Vol 21 | 3.87/5 | 4.71/5 |
| Vol 22 | 2.99/5 | 4.42/5 |
| Vol 23 | 2.69/5 | 4.07/5 |
| Overall | 2.96/5 | 4.71/5 |