| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 3.43/5 | 4.36/5 |
| Vol 2 | 3.56/5 | 4.48/5 |
| Vol 3 | 3.45/5 | 4.39/5 |
| Vol 4 | 3.55/5 | 4.45/5 |
| Vol 5 | 3.58/5 | 4.45/5 |
| Vol 6 | 3.59/5 | 4.50/5 |
| Vol 7 | 3.73/5 | 4.54/5 |
| Vol 8 | 3.46/5 | 4.39/5 |
| Vol 9 | 3.62/5 | 4.48/5 |
| Vol 10 | 3.38/5 | 4.36/5 |
| Vol 11 | 3.63/5 | 4.52/5 |
| Vol 12 | 3.32/5 | 4.24/5 |
| Vol 13 | 3.49/5 | 4.46/5 |
| Vol 14 | 3.69/5 | 4.54/5 |
| Vol 15 | 3.62/5 | 4.51/5 |
| Vol 16 | 3.46/5 | 4.42/5 |
| Vol 17 | 3.65/5 | 4.50/5 |
| Vol 18 | 3.58/5 | 4.45/5 |
| Vol 19 | 3.55/5 | 4.44/5 |
| Vol 20 | 3.48/5 | 4.38/5 |
| Vol 21 | 3.38/5 | 4.36/5 |
| Vol 22 | 3.55/5 | 4.47/5 |
| Overall | 3.53/5 | 4.54/5 |