| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 2.29/5 | 3.30/5 |
| Vol 2 | 2.49/5 | 3.57/5 |
| Vol 3 | 2.13/5 | 3.27/5 |
| Vol 4 | 2.66/5 | 3.99/5 |
| Vol 5 | 2.15/5 | 3.18/5 |
| Vol 6 | 2.58/5 | 4.38/5 |
| Vol 7 | 2.64/5 | 4.44/5 |
| Vol 8 | 2.58/5 | 4.38/5 |
| Vol 9 | 2.63/5 | 4.38/5 |
| Vol 10 | 2.48/5 | 4.21/5 |
| Vol 11 | 2.79/5 | 4.38/5 |
| Vol 12 | 3.04/5 | 4.69/5 |
| Vol 13 | 2.33/5 | 3.48/5 |
| Vol 14 | 2.33/5 | 4.35/5 |
| Vol 15 | 2.62/5 | 4.58/5 |
| Vol 16 | 2.73/5 | 4.44/5 |
| Vol 17 | 2.02/5 | 3.48/5 |
| Overall | 2.59/5 | 4.69/5 |