| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 3.25/5 | 4.12/5 |
| Vol 2 | 3.28/5 | 4.18/5 |
| Vol 3 | 3.33/5 | 4.20/5 |
| Vol 4 | 3.25/5 | 4.18/5 |
| Vol 5 | 3.16/5 | 4.05/5 |
| Vol 6 | 3.27/5 | 4.18/5 |
| Vol 7 | 3.29/5 | 4.17/5 |
| Vol 8 | 3.42/5 | 4.23/5 |
| Vol 9 | 3.41/5 | 4.24/5 |
| Vol 10 | 3.29/5 | 4.14/5 |
| Vol 11 | 3.25/5 | 4.18/5 |
| Vol 12 | 3.31/5 | 4.18/5 |
| Vol 13 | 3.29/5 | 4.18/5 |
| Vol 14 | 3.30/5 | 4.20/5 |
| Vol 15 | 3.51/5 | 4.25/5 |
| Vol 16 | 3.25/5 | 4.13/5 |
| Vol 17 | 3.21/5 | 4.18/5 |
| Overall | 3.30/5 | 4.25/5 |