| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 2.38/5 | 4.27/5 |
| Vol 2 | 2.59/5 | 4.36/5 |
| Vol 3 | 2.37/5 | 4.29/5 |
| Vol 4 | 2.40/5 | 4.38/5 |
| Vol 5 | 2.29/5 | 4.25/5 |
| Vol 6 | 2.54/5 | 4.40/5 |
| Vol 7 | 2.73/5 | 4.54/5 |
| Vol 8 | 2.45/5 | 4.38/5 |
| Vol 9 | 2.40/5 | 4.33/5 |
| Vol 10 | 2.46/5 | 4.32/5 |
| Vol 11 | 2.91/5 | 4.52/5 |
| Vol 12 | 2.73/5 | 4.49/5 |
| Vol 13 | 2.87/5 | 4.54/5 |
| Vol 14 | 2.70/5 | 4.47/5 |
| Vol 15 | 2.31/5 | 4.38/5 |
| Vol 16 | 2.69/5 | 4.52/5 |
| Vol 17 | 2.38/5 | 4.44/5 |
| Vol 18 | 2.44/5 | 4.39/5 |
| Vol 19 | 2.40/5 | 4.41/5 |
| Vol 20 | 2.42/5 | 4.30/5 |
| Vol 21 | 2.89/5 | 4.55/5 |
| Vol 22 | 2.62/5 | 4.45/5 |
| Vol 23 | 2.63/5 | 4.44/5 |
| Vol 24 | 2.47/5 | 4.27/5 |
| Vol 25 | 2.57/5 | 4.44/5 |
| Overall | 2.55/5 | 4.55/5 |