| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 2.55/5 | 3.56/5 |
| Vol 2 | 2.52/5 | 3.55/5 |
| Vol 3 | 2.52/5 | 3.59/5 |
| Vol 4 | 2.53/5 | 3.58/5 |
| Vol 5 | 2.47/5 | 3.41/5 |
| Vol 6 | 2.36/5 | 2.78/5 |
| Vol 7 | 2.52/5 | 3.47/5 |
| Vol 8 | 2.34/5 | 3.23/5 |
| Vol 9 | 2.52/5 | 3.51/5 |
| Vol 10 | 2.44/5 | 3.39/5 |
| Vol 11 | 2.46/5 | 3.41/5 |
| Vol 12 | 2.43/5 | 3.36/5 |
| Vol 13 | 2.43/5 | 3.35/5 |
| Vol 14 | 2.46/5 | 3.56/5 |
| Vol 15 | 2.50/5 | 3.48/5 |
| Vol 16 | 2.55/5 | 3.63/5 |
| Vol 17 | 2.54/5 | 3.48/5 |
| Overall | 2.48/5 | 3.63/5 |