| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 2.28/5 | 3.68/5 |
| Vol 2 | 2.70/5 | 3.86/5 |
| Vol 3 | 2.72/5 | 3.91/5 |
| Vol 4 | 3.05/5 | 4.25/5 |
| Vol 5 | 2.89/5 | 3.88/5 |
| Vol 6 | 2.70/5 | 3.89/5 |
| Vol 7 | 3.03/5 | 3.91/5 |
| Vol 8 | 2.66/5 | 3.83/5 |
| Vol 9 | 2.96/5 | 3.97/5 |
| Vol 10 | 2.93/5 | 3.98/5 |
| Vol 11 | 3.02/5 | 3.91/5 |
| Vol 12 | 3.10/5 | 4.02/5 |
| Vol 13 | 2.89/5 | 3.91/5 |
| Vol 14 | 3.02/5 | 3.97/5 |
| Vol 15 | 2.95/5 | 4.02/5 |
| Vol 16 | 3.08/5 | 4.04/5 |
| Vol 17 | 2.77/5 | 3.93/5 |
| Vol 18 | 3.05/5 | 3.96/5 |
| Vol 19 | 2.75/5 | 4.15/5 |
| Vol 20 | 2.88/5 | 3.80/5 |
| Vol 21 | 2.92/5 | 3.84/5 |
| Vol 22 | 2.83/5 | 3.90/5 |
| Vol 23 | 2.99/5 | 3.92/5 |
| Vol 24 | 2.95/5 | 3.88/5 |
| Vol 25 | 3.04/5 | 3.93/5 |
| Overall | 2.89/5 | 4.25/5 |