| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 3.19/5 | 3.77/5 |
| Vol 2 | 3.36/5 | 3.87/5 |
| Vol 3 | 3.20/5 | 3.82/5 |
| Vol 4 | 3.07/5 | 3.77/5 |
| Vol 5 | 3.16/5 | 3.78/5 |
| Vol 6 | 3.23/5 | 3.86/5 |
| Vol 7 | 3.34/5 | 3.94/5 |
| Vol 8 | 3.33/5 | 3.87/5 |
| Vol 9 | 3.33/5 | 3.96/5 |
| Vol 10 | 3.24/5 | 3.88/5 |
| Vol 11 | 3.32/5 | 3.88/5 |
| Vol 12 | 3.29/5 | 3.93/5 |
| Vol 13 | 3.34/5 | 3.71/5 |
| Vol 14 | 3.30/5 | 3.85/5 |
| Vol 15 | 3.32/5 | 3.86/5 |
| Vol 16 | 3.29/5 | 3.93/5 |
| Vol 17 | 3.47/5 | 4.23/5 |
| Vol 18 | 3.33/5 | 3.95/5 |
| Vol 19 | 3.25/5 | 3.94/5 |
| Overall | 3.28/5 | 4.23/5 |