| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 2.28/5 | 4.16/5 |
| Vol 2 | 2.17/5 | 4.29/5 |
| Vol 3 | 3.39/5 | 4.52/5 |
| Vol 4 | 2.99/5 | 4.50/5 |
| Vol 5 | 3.73/5 | 4.59/5 |
| Vol 6 | 3.73/5 | 4.58/5 |
| Vol 7 | 3.21/5 | 4.50/5 |
| Vol 8 | 3.32/5 | 4.57/5 |
| Vol 9 | 3.36/5 | 4.54/5 |
| Vol 10 | 2.60/5 | 4.29/5 |
| Vol 11 | 2.91/5 | 4.48/5 |
| Vol 12 | 2.76/5 | 4.31/5 |
| Vol 13 | 3.71/5 | 4.59/5 |
| Vol 14 | 3.46/5 | 4.55/5 |
| Vol 15 | 3.44/5 | 4.51/5 |
| Vol 16 | 3.65/5 | 4.56/5 |
| Vol 17 | 3.45/5 | 4.50/5 |
| Overall | 3.35/5 | 4.59/5 |