| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 2.24/5 | 4.56/5 |
| Vol 2 | 2.43/5 | 4.45/5 |
| Vol 3 | 2.53/5 | 4.43/5 |
| Vol 4 | 2.57/5 | 4.20/5 |
| Vol 5 | 2.65/5 | 4.33/5 |
| Vol 6 | 2.73/5 | 4.43/5 |
| Vol 7 | 2.58/5 | 4.29/5 |
| Vol 8 | 2.74/5 | 4.52/5 |
| Vol 9 | 2.68/5 | 4.49/5 |
| Vol 10 | 2.72/5 | 4.46/5 |
| Vol 11 | 2.59/5 | 4.49/5 |
| Vol 12 | 2.74/5 | 4.54/5 |
| Vol 13 | 2.57/5 | 4.18/5 |
| Vol 14 | 2.76/5 | 4.53/5 |
| Vol 15 | 2.72/5 | 4.19/5 |
| Vol 16 | 2.79/5 | 4.47/5 |
| Vol 17 | 2.96/5 | 4.63/5 |
| Vol 18 | 2.65/5 | 4.49/5 |
| Overall | 2.63/5 | 4.63/5 |