| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 2.23/5 | 4.35/5 |
| Vol 2 | 2.20/5 | 4.32/5 |
| Vol 3 | 2.45/5 | 4.29/5 |
| Vol 4 | 2.26/5 | 4.60/5 |
| Vol 5 | 2.15/5 | 4.43/5 |
| Vol 6 | 2.34/5 | 4.57/5 |
| Vol 7 | 2.27/5 | 4.43/5 |
| Vol 8 | 2.47/5 | 4.78/5 |
| Vol 9 | 2.29/5 | 4.52/5 |
| Vol 10 | 2.35/5 | 4.05/5 |
| Vol 11 | 2.26/5 | 4.49/5 |
| Vol 12 | 2.05/5 | 3.22/5 |
| Vol 13 | 2.49/5 | 4.62/5 |
| Vol 14 | 2.23/5 | 4.57/5 |
| Vol 15 | 2.33/5 | 3.81/5 |
| Vol 16 | 2.02/5 | 3.38/5 |
| Vol 17 | 2.10/5 | 4.43/5 |
| Vol 18 | 2.02/5 | 3.34/5 |
| Overall | 2.26/5 | 4.78/5 |