| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 2.76/5 | 4.50/5 |
| Vol 2 | 2.92/5 | 4.50/5 |
| Vol 3 | 2.55/5 | 4.36/5 |
| Vol 4 | 3.15/5 | 4.80/5 |
| Vol 5 | 2.65/5 | 4.45/5 |
| Vol 6 | 2.70/5 | 4.62/5 |
| Vol 7 | 2.48/5 | 4.42/5 |
| Vol 8 | 2.46/5 | 4.45/5 |
| Vol 9 | 2.59/5 | 4.13/5 |
| Vol 10 | 2.64/5 | 4.56/5 |
| Vol 11 | 2.40/5 | 4.16/5 |
| Vol 12 | 2.76/5 | 4.56/5 |
| Vol 13 | 2.59/5 | 4.39/5 |
| Vol 14 | 2.58/5 | 4.08/5 |
| Vol 15 | 2.69/5 | 4.65/5 |
| Vol 16 | 2.79/5 | 4.63/5 |
| Vol 17 | 2.56/5 | 4.69/5 |
| Vol 18 | 2.76/5 | 4.50/5 |
| Vol 19 | 2.53/5 | 4.42/5 |
| Overall | 2.67/5 | 4.80/5 |