| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 2.05/5 | 4.36/5 |
| Vol 2 | 1.86/5 | 4.32/5 |
| Vol 3 | 1.76/5 | 4.21/5 |
| Vol 4 | 1.91/5 | 4.27/5 |
| Vol 5 | 1.81/5 | 4.23/5 |
| Vol 6 | 1.96/5 | 4.38/5 |
| Vol 7 | 1.70/5 | 4.19/5 |
| Vol 8 | 1.72/5 | 4.12/5 |
| Vol 9 | 1.70/5 | 4.17/5 |
| Vol 10 | 1.65/5 | 4.19/5 |
| Vol 11 | 1.51/5 | 4.06/5 |
| Vol 12 | 1.65/5 | 3.33/5 |
| Vol 13 | 1.49/5 | 4.03/5 |
| Vol 14 | 1.59/5 | 3.86/5 |
| Vol 15 | 1.43/5 | 2.57/5 |
| Vol 16 | 1.68/5 | 4.25/5 |
| Vol 17 | 1.54/5 | 3.50/5 |
| Vol 18 | 1.62/5 | 4.00/5 |
| Vol 19 | 1.77/5 | 4.30/5 |
| Vol 20 | 1.59/5 | 4.25/5 |
| Overall | 1.70/5 | 4.38/5 |