| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 1.75/5 | 2.97/5 |
| Vol 2 | 1.88/5 | 3.18/5 |
| Vol 3 | 2.08/5 | 4.21/5 |
| Vol 4 | 1.86/5 | 3.50/5 |
| Vol 5 | 2.23/5 | 4.23/5 |
| Vol 6 | 1.94/5 | 4.09/5 |
| Vol 7 | 1.94/5 | 3.86/5 |
| Vol 8 | 1.98/5 | 3.80/5 |
| Vol 9 | 1.92/5 | 3.50/5 |
| Vol 10 | 1.98/5 | 4.14/5 |
| Vol 11 | 1.98/5 | 3.57/5 |
| Vol 12 | 2.30/5 | 3.93/5 |
| Vol 13 | 2.14/5 | 4.06/5 |
| Vol 14 | 2.05/5 | 3.50/5 |
| Overall | 2.00/5 | 4.23/5 |