| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 2.35/5 | 4.27/5 |
| Vol 2 | 2.35/5 | 4.30/5 |
| Vol 3 | 2.77/5 | 4.37/5 |
| Vol 4 | 2.84/5 | 4.44/5 |
| Vol 5 | 2.56/5 | 4.29/5 |
| Vol 6 | 2.80/5 | 4.39/5 |
| Vol 7 | 2.92/5 | 4.46/5 |
| Vol 8 | 3.23/5 | 4.52/5 |
| Vol 9 | 2.91/5 | 4.36/5 |
| Vol 10 | 2.89/5 | 4.45/5 |
| Vol 11 | 2.86/5 | 4.39/5 |
| Vol 12 | 2.86/5 | 4.39/5 |
| Vol 13 | 2.77/5 | 4.27/5 |
| Vol 14 | 2.86/5 | 4.30/5 |
| Vol 15 | 2.65/5 | 4.27/5 |
| Vol 16 | 3.36/5 | 4.51/5 |
| Overall | 2.81/5 | 4.52/5 |