| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 3.81/5 | 4.31/5 |
| Vol 2 | 3.66/5 | 4.25/5 |
| Vol 3 | 3.89/5 | 4.34/5 |
| Vol 4 | 3.81/5 | 4.31/5 |
| Vol 5 | 3.71/5 | 4.27/5 |
| Vol 6 | 3.92/5 | 4.35/5 |
| Vol 7 | 3.94/5 | 4.36/5 |
| Vol 8 | 3.69/5 | 4.26/5 |
| Vol 9 | 3.82/5 | 4.31/5 |
| Vol 10 | 3.69/5 | 4.26/5 |
| Vol 11 | 3.72/5 | 4.27/5 |
| Vol 12 | 3.92/5 | 4.35/5 |
| Vol 13 | 3.66/5 | 4.25/5 |
| Overall | 3.79/5 | 4.36/5 |