| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 3.27/5 | 4.24/5 |
| Vol 2 | 3.37/5 | 4.34/5 |
| Vol 3 | 3.33/5 | 4.37/5 |
| Vol 4 | 3.36/5 | 4.43/5 |
| Vol 5 | 3.29/5 | 4.41/5 |
| Vol 6 | 3.31/5 | 4.31/5 |
| Vol 7 | 3.28/5 | 4.29/5 |
| Vol 8 | 3.26/5 | 4.27/5 |
| Vol 9 | 3.51/5 | 4.44/5 |
| Vol 10 | 3.77/5 | 4.55/5 |
| Vol 11 | 3.30/5 | 4.30/5 |
| Vol 12 | 3.52/5 | 4.47/5 |
| Overall | 3.38/5 | 4.55/5 |