| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 3.07/5 | 3.92/5 |
| Vol 2 | 3.06/5 | 3.85/5 |
| Vol 3 | 3.03/5 | 3.85/5 |
| Vol 4 | 3.16/5 | 3.96/5 |
| Vol 5 | 3.00/5 | 4.08/5 |
| Vol 6 | 3.12/5 | 3.92/5 |
| Vol 7 | 3.32/5 | 4.08/5 |
| Vol 8 | 3.15/5 | 4.10/5 |
| Vol 9 | 3.32/5 | 4.18/5 |
| Vol 10 | 3.32/5 | 4.14/5 |
| Vol 11 | 3.19/5 | 4.18/5 |
| Vol 12 | 3.26/5 | 4.09/5 |
| Vol 13 | 3.36/5 | 4.24/5 |
| Vol 14 | 3.32/5 | 4.00/5 |
| Vol 15 | 3.38/5 | 4.29/5 |
| Vol 16 | 3.42/5 | 4.29/5 |
| Vol 17 | 3.34/5 | 4.04/5 |
| Vol 18 | 3.55/5 | 4.35/5 |
| Vol 19 | 3.43/5 | 4.10/5 |
| Vol 20 | 3.35/5 | 4.23/5 |
| Vol 21 | 2.89/5 | 3.87/5 |
| Vol 22 | 2.99/5 | 3.85/5 |
| Overall | 3.23/5 | 4.35/5 |