| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 3.54/5 | 4.37/5 |
| Vol 2 | 3.59/5 | 4.37/5 |
| Vol 3 | 3.44/5 | 4.31/5 |
| Vol 4 | 3.57/5 | 4.40/5 |
| Vol 5 | 3.34/5 | 4.26/5 |
| Vol 6 | 3.44/5 | 4.27/5 |
| Vol 7 | 3.60/5 | 4.40/5 |
| Vol 8 | 3.41/5 | 4.31/5 |
| Vol 9 | 3.44/5 | 4.33/5 |
| Vol 10 | 3.58/5 | 4.41/5 |
| Vol 11 | 3.42/5 | 4.33/5 |
| Vol 12 | 3.38/5 | 4.30/5 |
| Vol 13 | 3.52/5 | 4.33/5 |
| Vol 14 | 3.49/5 | 4.31/5 |
| Vol 15 | 3.48/5 | 4.32/5 |
| Vol 16 | 3.64/5 | 4.41/5 |
| Vol 17 | 3.36/5 | 4.18/5 |
| Vol 18 | 3.72/5 | 4.44/5 |
| Vol 19 | 3.54/5 | 4.36/5 |
| Vol 20 | 3.55/5 | 4.32/5 |
| Vol 21 | 3.55/5 | 4.36/5 |
| Vol 22 | 3.54/5 | 4.33/5 |
| Overall | 3.51/5 | 4.44/5 |