| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 2.95/5 | 4.49/5 |
| Vol 2 | 2.65/5 | 4.43/5 |
| Vol 3 | 2.71/5 | 4.44/5 |
| Vol 4 | 2.63/5 | 4.41/5 |
| Vol 5 | 2.44/5 | 4.14/5 |
| Vol 6 | 2.65/5 | 4.42/5 |
| Vol 7 | 2.83/5 | 4.45/5 |
| Vol 8 | 2.58/5 | 4.36/5 |
| Vol 9 | 2.38/5 | 4.27/5 |
| Vol 10 | 2.39/5 | 4.27/5 |
| Vol 11 | 2.70/5 | 4.40/5 |
| Vol 12 | 2.79/5 | 4.46/5 |
| Vol 13 | 2.63/5 | 4.39/5 |
| Vol 14 | 2.71/5 | 4.44/5 |
| Vol 15 | 2.63/5 | 4.45/5 |
| Vol 16 | 2.69/5 | 4.50/5 |
| Overall | 2.65/5 | 4.50/5 |