| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 2.81/5 | 4.35/5 |
| Vol 2 | 2.95/5 | 4.35/5 |
| Vol 3 | 2.87/5 | 3.93/5 |
| Vol 4 | 2.64/5 | 4.09/5 |
| Vol 5 | 3.11/5 | 4.32/5 |
| Vol 6 | 2.77/5 | 4.21/5 |
| Vol 7 | 3.05/5 | 4.19/5 |
| Vol 8 | 2.85/5 | 4.32/5 |
| Vol 9 | 3.05/5 | 4.25/5 |
| Vol 10 | 3.18/5 | 4.42/5 |
| Vol 11 | 3.32/5 | 4.44/5 |
| Vol 12 | 2.66/5 | 4.23/5 |
| Vol 13 | 3.04/5 | 4.40/5 |
| Vol 14 | 3.79/5 | 4.55/5 |
| Vol 15 | 2.81/5 | 4.33/5 |
| Vol 16 | 3.07/5 | 4.17/5 |
| Vol 17 | 3.10/5 | 4.21/5 |
| Vol 18 | 3.15/5 | 4.29/5 |
| Vol 19 | 3.22/5 | 4.17/5 |
| Vol 20 | 3.00/5 | 4.32/5 |
| Vol 21 | 2.50/5 | 4.00/5 |
| Vol 22 | 2.84/5 | 4.33/5 |
| Overall | 2.99/5 | 4.55/5 |