| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 2.90/5 | 3.83/5 |
| Vol 2 | 2.85/5 | 4.01/5 |
| Vol 3 | 2.98/5 | 3.95/5 |
| Vol 4 | 2.86/5 | 3.93/5 |
| Vol 5 | 2.86/5 | 3.89/5 |
| Vol 6 | 2.87/5 | 3.95/5 |
| Vol 7 | 3.10/5 | 4.08/5 |
| Vol 8 | 2.97/5 | 3.90/5 |
| Vol 9 | 3.09/5 | 3.94/5 |
| Vol 10 | 2.77/5 | 4.02/5 |
| Vol 11 | 2.95/5 | 4.05/5 |
| Vol 12 | 3.01/5 | 4.22/5 |
| Vol 13 | 3.12/5 | 4.28/5 |
| Vol 14 | 3.03/5 | 4.23/5 |
| Vol 15 | 3.26/5 | 4.39/5 |
| Vol 16 | 3.16/5 | 4.25/5 |
| Vol 17 | 2.95/5 | 4.24/5 |
| Vol 18 | 2.99/5 | 4.01/5 |
| Vol 19 | 3.06/5 | 4.11/5 |
| Vol 20 | 2.97/5 | 4.10/5 |
| Vol 21 | 2.62/5 | 3.79/5 |
| Overall | 2.97/5 | 4.39/5 |