| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 4.01/5 | 4.61/5 |
| Vol 2 | 3.68/5 | 4.52/5 |
| Vol 3 | 3.87/5 | 4.58/5 |
| Vol 4 | 3.64/5 | 4.47/5 |
| Vol 5 | 3.73/5 | 4.52/5 |
| Vol 6 | 3.78/5 | 4.54/5 |
| Vol 7 | 3.67/5 | 4.51/5 |
| Vol 8 | 3.81/5 | 4.55/5 |
| Vol 9 | 3.21/5 | 4.38/5 |
| Vol 10 | 3.73/5 | 4.53/5 |
| Vol 11 | 3.93/5 | 4.59/5 |
| Vol 12 | 3.91/5 | 4.58/5 |
| Vol 13 | 3.82/5 | 4.54/5 |
| Vol 14 | 3.82/5 | 4.54/5 |
| Vol 15 | 3.84/5 | 4.55/5 |
| Vol 16 | 3.68/5 | 4.50/5 |
| Vol 17 | 3.79/5 | 4.53/5 |
| Vol 18 | 3.94/5 | 4.58/5 |
| Vol 19 | 4.05/5 | 4.62/5 |
| Vol 20 | 3.41/5 | 4.44/5 |
| Overall | 3.77/5 | 4.62/5 |