| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 3.43/5 | 4.24/5 |
| Vol 2 | 3.47/5 | 4.30/5 |
| Vol 3 | 3.54/5 | 4.32/5 |
| Vol 4 | 3.59/5 | 4.36/5 |
| Vol 5 | 3.49/5 | 4.28/5 |
| Vol 6 | 3.47/5 | 4.24/5 |
| Vol 7 | 3.50/5 | 4.27/5 |
| Vol 8 | 3.47/5 | 4.28/5 |
| Vol 9 | 3.50/5 | 4.29/5 |
| Vol 10 | 3.56/5 | 4.32/5 |
| Vol 11 | 3.54/5 | 4.33/5 |
| Vol 12 | 3.47/5 | 4.28/5 |
| Vol 13 | 3.56/5 | 4.32/5 |
| Vol 14 | 3.52/5 | 4.31/5 |
| Overall | 3.51/5 | 4.36/5 |