| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 3.73/5 | 4.52/5 |
| Vol 2 | 3.73/5 | 4.52/5 |
| Vol 3 | 3.95/5 | 4.58/5 |
| Vol 4 | 3.83/5 | 4.55/5 |
| Vol 5 | 3.73/5 | 4.50/5 |
| Vol 6 | 4.08/5 | 4.63/5 |
| Vol 7 | 3.82/5 | 4.55/5 |
| Vol 8 | 3.88/5 | 4.57/5 |
| Vol 9 | 3.89/5 | 4.57/5 |
| Vol 10 | 3.64/5 | 4.48/5 |
| Vol 11 | 4.00/5 | 4.60/5 |
| Vol 12 | 3.76/5 | 4.50/5 |
| Vol 13 | 3.57/5 | 4.45/5 |
| Vol 14 | 3.74/5 | 4.49/5 |
| Vol 15 | 3.83/5 | 4.54/5 |
| Overall | 3.82/5 | 4.63/5 |