| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 2.87/5 | 3.86/5 |
| Vol 2 | 2.81/5 | 3.69/5 |
| Vol 3 | 2.68/5 | 3.75/5 |
| Vol 4 | 2.74/5 | 3.71/5 |
| Vol 5 | 2.84/5 | 3.62/5 |
| Vol 6 | 2.62/5 | 3.66/5 |
| Vol 7 | 2.45/5 | 3.46/5 |
| Vol 8 | 2.65/5 | 3.73/5 |
| Vol 9 | 2.58/5 | 3.63/5 |
| Vol 10 | 2.77/5 | 3.76/5 |
| Vol 11 | 2.50/5 | 3.79/5 |
| Vol 12 | 2.63/5 | 3.61/5 |
| Vol 13 | 2.62/5 | 3.72/5 |
| Vol 14 | 2.79/5 | 3.80/5 |
| Vol 15 | 2.78/5 | 3.70/5 |
| Vol 16 | 2.53/5 | 3.52/5 |
| Vol 17 | 2.75/5 | 3.73/5 |
| Vol 18 | 2.61/5 | 3.64/5 |
| Vol 19 | 2.73/5 | 3.74/5 |
| Overall | 2.68/5 | 3.86/5 |