| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 2.73/5 | 4.46/5 |
| Vol 2 | 3.10/5 | 4.47/5 |
| Vol 3 | 2.76/5 | 4.33/5 |
| Vol 4 | 2.93/5 | 4.45/5 |
| Vol 5 | 3.21/5 | 4.43/5 |
| Vol 6 | 2.43/5 | 4.40/5 |
| Vol 7 | 2.74/5 | 4.44/5 |
| Vol 8 | 3.06/5 | 4.48/5 |
| Vol 9 | 3.61/5 | 4.56/5 |
| Vol 10 | 3.40/5 | 4.52/5 |
| Vol 11 | 3.81/5 | 4.58/5 |
| Vol 12 | 3.30/5 | 4.49/5 |
| Vol 13 | 3.08/5 | 4.45/5 |
| Vol 14 | 3.95/5 | 4.59/5 |
| Vol 15 | 3.59/5 | 4.54/5 |
| Vol 16 | 3.45/5 | 4.53/5 |
| Vol 17 | 3.81/5 | 4.57/5 |
| Vol 18 | 3.54/5 | 4.53/5 |
| Vol 19 | 2.50/5 | 4.46/5 |
| Vol 20 | 3.22/5 | 4.30/5 |
| Overall | 3.21/5 | 4.59/5 |