| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 2.68/5 | 4.40/5 |
| Vol 2 | 2.48/5 | 4.30/5 |
| Vol 3 | 2.54/5 | 4.38/5 |
| Vol 4 | 2.66/5 | 4.40/5 |
| Vol 5 | 2.68/5 | 4.38/5 |
| Vol 6 | 2.50/5 | 4.09/5 |
| Vol 7 | 2.66/5 | 4.42/5 |
| Vol 8 | 2.62/5 | 4.35/5 |
| Vol 9 | 2.76/5 | 4.42/5 |
| Vol 10 | 2.74/5 | 4.43/5 |
| Vol 11 | 2.65/5 | 4.35/5 |
| Vol 12 | 2.66/5 | 4.38/5 |
| Vol 13 | 2.91/5 | 4.51/5 |
| Vol 14 | 2.70/5 | 4.33/5 |
| Overall | 2.66/5 | 4.51/5 |