| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 3.37/5 | 4.28/5 |
| Vol 2 | 3.37/5 | 4.29/5 |
| Vol 3 | 3.60/5 | 4.37/5 |
| Vol 4 | 3.62/5 | 4.42/5 |
| Vol 5 | 3.65/5 | 4.47/5 |
| Vol 6 | 3.66/5 | 4.46/5 |
| Vol 7 | 3.54/5 | 4.41/5 |
| Vol 8 | 3.72/5 | 4.49/5 |
| Vol 9 | 3.74/5 | 4.50/5 |
| Vol 10 | 3.55/5 | 4.36/5 |
| Vol 11 | 3.68/5 | 4.47/5 |
| Vol 12 | 3.80/5 | 4.52/5 |
| Vol 13 | 3.71/5 | 4.47/5 |
| Vol 14 | 3.65/5 | 4.45/5 |
| Vol 15 | 3.76/5 | 4.53/5 |
| Vol 16 | 3.75/5 | 4.50/5 |
| Vol 17 | 4.03/5 | 4.61/5 |
| Vol 18 | 3.74/5 | 4.52/5 |
| Vol 19 | 3.92/5 | 4.58/5 |
| Vol 20 | 3.73/5 | 4.50/5 |
| Vol 21 | 3.74/5 | 4.49/5 |
| Overall | 3.67/5 | 4.61/5 |