| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 3.01/5 | 4.53/5 |
| Vol 2 | 2.58/5 | 4.29/5 |
| Vol 3 | 2.87/5 | 4.51/5 |
| Vol 4 | 2.98/5 | 4.52/5 |
| Vol 5 | 2.96/5 | 4.55/5 |
| Vol 6 | 2.80/5 | 4.37/5 |
| Vol 7 | 3.39/5 | 4.60/5 |
| Vol 8 | 2.77/5 | 4.42/5 |
| Vol 9 | 2.87/5 | 4.51/5 |
| Vol 10 | 2.99/5 | 4.49/5 |
| Vol 11 | 3.10/5 | 4.56/5 |
| Vol 12 | 3.47/5 | 4.62/5 |
| Vol 13 | 3.30/5 | 4.59/5 |
| Vol 14 | 3.70/5 | 4.65/5 |
| Vol 15 | 3.19/5 | 4.54/5 |
| Vol 16 | 3.35/5 | 4.62/5 |
| Vol 17 | 2.93/5 | 4.45/5 |
| Vol 18 | 2.83/5 | 4.46/5 |
| Vol 19 | 3.09/5 | 4.61/5 |
| Vol 20 | 2.95/5 | 4.57/5 |
| Vol 21 | 3.23/5 | 4.62/5 |
| Vol 22 | 3.13/5 | 4.46/5 |
| Vol 23 | 2.98/5 | 4.51/5 |
| Vol 24 | 3.15/5 | 4.57/5 |
| Overall | 3.08/5 | 4.65/5 |