| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 3.79/5 | 4.32/5 |
| Vol 2 | 3.71/5 | 4.29/5 |
| Vol 3 | 3.68/5 | 4.28/5 |
| Vol 4 | 3.73/5 | 4.29/5 |
| Vol 5 | 3.68/5 | 4.28/5 |
| Vol 6 | 3.70/5 | 4.28/5 |
| Vol 7 | 3.80/5 | 4.32/5 |
| Vol 8 | 3.82/5 | 4.33/5 |
| Vol 9 | 3.82/5 | 4.33/5 |
| Vol 10 | 3.88/5 | 4.35/5 |
| Vol 11 | 3.78/5 | 4.31/5 |
| Vol 12 | 3.72/5 | 4.29/5 |
| Vol 13 | 3.76/5 | 4.30/5 |
| Vol 14 | 3.86/5 | 4.35/5 |
| Overall | 3.77/5 | 4.35/5 |