| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 1.85/5 | 3.88/5 |
| Vol 2 | 1.62/5 | 4.00/5 |
| Vol 3 | 1.86/5 | 4.02/5 |
| Vol 4 | 1.83/5 | 4.29/5 |
| Vol 5 | 1.91/5 | 4.28/5 |
| Vol 6 | 1.79/5 | 4.16/5 |
| Vol 7 | 1.55/5 | 2.94/5 |
| Vol 8 | 1.96/5 | 4.27/5 |
| Vol 9 | 1.89/5 | 4.21/5 |
| Vol 10 | 1.94/5 | 4.00/5 |
| Vol 11 | 1.71/5 | 3.76/5 |
| Vol 12 | 1.90/5 | 4.03/5 |
| Vol 13 | 1.80/5 | 4.16/5 |
| Vol 14 | 1.97/5 | 4.09/5 |
| Vol 15 | 2.47/5 | 4.40/5 |
| Overall | 1.87/5 | 4.40/5 |