| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 3.91/5 | 4.58/5 |
| Vol 2 | 3.95/5 | 4.59/5 |
| Vol 3 | 3.80/5 | 4.52/5 |
| Vol 4 | 4.00/5 | 4.60/5 |
| Vol 5 | 3.83/5 | 4.55/5 |
| Vol 6 | 3.64/5 | 4.47/5 |
| Vol 7 | 3.70/5 | 4.50/5 |
| Vol 8 | 3.77/5 | 4.51/5 |
| Vol 9 | 3.69/5 | 4.48/5 |
| Vol 10 | 3.89/5 | 4.56/5 |
| Vol 11 | 3.93/5 | 4.58/5 |
| Vol 12 | 3.97/5 | 4.59/5 |
| Vol 13 | 3.96/5 | 4.59/5 |
| Vol 14 | 4.00/5 | 4.60/5 |
| Vol 15 | 4.00/5 | 4.60/5 |
| Vol 16 | 4.09/5 | 4.64/5 |
| Vol 17 | 3.68/5 | 4.49/5 |
| Vol 18 | 3.71/5 | 4.49/5 |
| Vol 19 | 3.73/5 | 4.48/5 |
| Vol 20 | 4.03/5 | 4.62/5 |
| Vol 21 | 3.68/5 | 4.45/5 |
| Overall | 3.87/5 | 4.64/5 |