| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 3.28/5 | 3.86/5 |
| Vol 2 | 3.45/5 | 3.96/5 |
| Vol 3 | 3.29/5 | 3.91/5 |
| Vol 4 | 3.16/5 | 3.86/5 |
| Vol 5 | 3.25/5 | 3.87/5 |
| Vol 6 | 3.32/5 | 3.95/5 |
| Vol 7 | 3.43/5 | 4.03/5 |
| Vol 8 | 3.42/5 | 3.96/5 |
| Vol 9 | 3.42/5 | 4.05/5 |
| Vol 10 | 3.33/5 | 3.97/5 |
| Vol 11 | 3.41/5 | 3.97/5 |
| Vol 12 | 3.38/5 | 4.02/5 |
| Vol 13 | 3.43/5 | 3.80/5 |
| Vol 14 | 3.39/5 | 3.94/5 |
| Vol 15 | 3.41/5 | 3.95/5 |
| Vol 16 | 3.38/5 | 4.02/5 |
| Vol 17 | 3.56/5 | 4.32/5 |
| Vol 18 | 3.42/5 | 4.04/5 |
| Vol 19 | 3.34/5 | 4.03/5 |
| Overall | 3.37/5 | 4.32/5 |