| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 2.19/5 | 4.56/5 |
| Vol 2 | 2.68/5 | 4.60/5 |
| Vol 3 | 2.47/5 | 4.63/5 |
| Vol 4 | 2.65/5 | 4.62/5 |
| Vol 5 | 2.51/5 | 4.36/5 |
| Vol 6 | 2.73/5 | 4.63/5 |
| Vol 7 | 2.07/5 | 3.53/5 |
| Vol 8 | 2.42/5 | 4.16/5 |
| Vol 9 | 2.25/5 | 4.33/5 |
| Vol 10 | 2.17/5 | 3.28/5 |
| Vol 11 | 2.50/5 | 4.45/5 |
| Vol 12 | 2.41/5 | 4.72/5 |
| Vol 13 | 2.57/5 | 4.66/5 |
| Vol 14 | 2.40/5 | 4.60/5 |
| Vol 15 | 2.37/5 | 4.66/5 |
| Vol 16 | 2.65/5 | 4.65/5 |
| Vol 17 | 2.31/5 | 4.66/5 |
| Vol 18 | 2.23/5 | 4.58/5 |
| Vol 19 | 2.72/5 | 4.63/5 |
| Overall | 2.43/5 | 4.72/5 |