| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 3.12/5 | 4.04/5 |
| Vol 2 | 3.19/5 | 3.98/5 |
| Vol 3 | 3.06/5 | 3.91/5 |
| Vol 4 | 3.22/5 | 4.08/5 |
| Vol 5 | 3.05/5 | 4.01/5 |
| Vol 6 | 3.14/5 | 4.07/5 |
| Vol 7 | 3.29/5 | 4.26/5 |
| Vol 8 | 3.09/5 | 4.16/5 |
| Vol 9 | 3.42/5 | 4.32/5 |
| Vol 10 | 3.26/5 | 4.15/5 |
| Vol 11 | 3.34/5 | 4.15/5 |
| Vol 12 | 3.30/5 | 4.21/5 |
| Vol 13 | 3.43/5 | 4.35/5 |
| Vol 14 | 3.40/5 | 4.24/5 |
| Vol 15 | 3.38/5 | 4.21/5 |
| Vol 16 | 3.31/5 | 4.27/5 |
| Vol 17 | 3.55/5 | 4.39/5 |
| Vol 18 | 3.40/5 | 4.28/5 |
| Vol 19 | 3.65/5 | 4.45/5 |
| Vol 20 | 3.28/5 | 4.22/5 |
| Vol 21 | 2.96/5 | 3.91/5 |
| Vol 22 | 3.12/5 | 3.95/5 |
| Overall | 3.27/5 | 4.45/5 |