| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 2.53/5 | 3.53/5 |
| Vol 2 | 2.62/5 | 3.64/5 |
| Vol 3 | 2.61/5 | 3.64/5 |
| Vol 4 | 2.56/5 | 3.54/5 |
| Vol 5 | 2.53/5 | 3.52/5 |
| Vol 6 | 2.43/5 | 3.48/5 |
| Vol 7 | 2.40/5 | 3.52/5 |
| Vol 8 | 2.33/5 | 3.40/5 |
| Vol 9 | 2.66/5 | 3.86/5 |
| Vol 10 | 2.63/5 | 3.58/5 |
| Vol 11 | 2.57/5 | 3.50/5 |
| Vol 12 | 2.47/5 | 3.71/5 |
| Vol 13 | 2.43/5 | 3.43/5 |
| Vol 14 | 2.51/5 | 3.74/5 |
| Vol 15 | 2.63/5 | 3.71/5 |
| Vol 16 | 2.36/5 | 3.38/5 |
| Overall | 2.52/5 | 3.86/5 |