| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 2.88/5 | 3.84/5 |
| Vol 2 | 2.69/5 | 3.78/5 |
| Vol 3 | 3.05/5 | 4.22/5 |
| Vol 4 | 3.15/5 | 4.18/5 |
| Vol 5 | 2.95/5 | 4.07/5 |
| Vol 6 | 2.89/5 | 3.87/5 |
| Vol 7 | 2.85/5 | 4.02/5 |
| Vol 8 | 2.80/5 | 3.95/5 |
| Vol 9 | 2.72/5 | 3.88/5 |
| Vol 10 | 2.79/5 | 3.83/5 |
| Vol 11 | 2.99/5 | 3.89/5 |
| Vol 12 | 3.06/5 | 3.96/5 |
| Vol 13 | 3.00/5 | 3.94/5 |
| Vol 14 | 3.00/5 | 4.14/5 |
| Vol 15 | 2.75/5 | 3.87/5 |
| Vol 16 | 3.04/5 | 3.97/5 |
| Vol 17 | 2.95/5 | 4.09/5 |
| Vol 18 | 3.03/5 | 3.94/5 |
| Vol 19 | 2.78/5 | 4.16/5 |
| Vol 20 | 2.90/5 | 3.81/5 |
| Vol 21 | 2.92/5 | 3.84/5 |
| Vol 22 | 2.89/5 | 4.05/5 |
| Vol 23 | 3.04/5 | 3.96/5 |
| Vol 24 | 2.95/5 | 3.89/5 |
| Vol 25 | 3.04/5 | 3.93/5 |
| Overall | 2.92/5 | 4.22/5 |