| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 2.81/5 | 4.54/5 |
| Vol 2 | 3.18/5 | 4.55/5 |
| Vol 3 | 2.84/5 | 4.41/5 |
| Vol 4 | 3.01/5 | 4.53/5 |
| Vol 5 | 3.29/5 | 4.51/5 |
| Vol 6 | 2.51/5 | 4.48/5 |
| Vol 7 | 2.82/5 | 4.52/5 |
| Vol 8 | 3.14/5 | 4.56/5 |
| Vol 9 | 3.69/5 | 4.64/5 |
| Vol 10 | 3.48/5 | 4.60/5 |
| Vol 11 | 3.89/5 | 4.66/5 |
| Vol 12 | 3.38/5 | 4.57/5 |
| Vol 13 | 3.16/5 | 4.53/5 |
| Vol 14 | 4.03/5 | 4.67/5 |
| Vol 15 | 3.67/5 | 4.62/5 |
| Vol 16 | 3.53/5 | 4.61/5 |
| Vol 17 | 3.89/5 | 4.65/5 |
| Vol 18 | 3.62/5 | 4.61/5 |
| Vol 19 | 2.58/5 | 4.54/5 |
| Vol 20 | 3.30/5 | 4.38/5 |
| Overall | 3.28/5 | 4.67/5 |