| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 3.15/5 | 3.99/5 |
| Vol 2 | 3.08/5 | 3.85/5 |
| Vol 3 | 2.95/5 | 3.81/5 |
| Vol 4 | 3.07/5 | 4.05/5 |
| Vol 5 | 3.30/5 | 4.15/5 |
| Vol 6 | 3.44/5 | 4.35/5 |
| Vol 7 | 3.26/5 | 4.12/5 |
| Vol 8 | 3.46/5 | 4.26/5 |
| Vol 9 | 3.38/5 | 4.20/5 |
| Vol 10 | 3.54/5 | 4.45/5 |
| Vol 11 | 3.36/5 | 4.32/5 |
| Vol 12 | 3.39/5 | 4.16/5 |
| Vol 13 | 3.33/5 | 4.27/5 |
| Vol 14 | 3.42/5 | 4.34/5 |
| Vol 15 | 3.45/5 | 4.37/5 |
| Vol 16 | 3.41/5 | 4.35/5 |
| Vol 17 | 3.33/5 | 4.32/5 |
| Vol 18 | 3.33/5 | 4.28/5 |
| Vol 19 | 3.46/5 | 4.32/5 |
| Vol 20 | 3.48/5 | 4.39/5 |
| Vol 21 | 3.69/5 | 4.48/5 |
| Vol 22 | 3.56/5 | 4.38/5 |
| Vol 23 | 3.55/5 | 4.42/5 |
| Vol 24 | 3.57/5 | 4.39/5 |
| Vol 25 | 3.42/5 | 4.40/5 |
| Overall | 3.38/5 | 4.48/5 |