| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 2.75/5 | 3.79/5 |
| Vol 2 | 2.87/5 | 3.88/5 |
| Vol 3 | 2.90/5 | 3.85/5 |
| Vol 4 | 2.84/5 | 3.91/5 |
| Vol 5 | 2.85/5 | 3.88/5 |
| Vol 6 | 2.90/5 | 3.92/5 |
| Vol 7 | 2.87/5 | 3.92/5 |
| Vol 8 | 2.63/5 | 3.74/5 |
| Vol 9 | 2.74/5 | 3.82/5 |
| Vol 10 | 2.90/5 | 4.05/5 |
| Vol 11 | 3.01/5 | 3.97/5 |
| Vol 12 | 2.91/5 | 3.97/5 |
| Vol 13 | 2.88/5 | 3.91/5 |
| Vol 14 | 3.04/5 | 3.94/5 |
| Vol 15 | 3.16/5 | 4.07/5 |
| Vol 16 | 2.89/5 | 3.94/5 |
| Vol 17 | 2.89/5 | 4.12/5 |
| Vol 18 | 2.98/5 | 3.89/5 |
| Vol 19 | 2.87/5 | 3.82/5 |
| Vol 20 | 2.92/5 | 4.12/5 |
| Vol 21 | 2.66/5 | 3.79/5 |
| Overall | 2.88/5 | 4.12/5 |