| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 1.80/5 | 3.93/5 |
| Vol 2 | 1.25/5 | 3.60/5 |
| Vol 3 | 0.94/5 | 3.24/5 |
| Vol 4 | 1.14/5 | 3.00/5 |
| Vol 5 | 1.75/5 | 3.48/5 |
| Vol 6 | 2.50/5 | 3.97/5 |
| Vol 7 | 0.88/5 | 2.40/5 |
| Vol 8 | 2.50/5 | 4.28/5 |
| Vol 9 | 1.62/5 | 4.17/5 |
| Vol 10 | 1.40/5 | 4.00/5 |
| Vol 11 | 2.50/5 | 4.20/5 |
| Vol 12 | 2.50/5 | 4.32/5 |
| Vol 13 | 1.50/5 | 4.15/5 |
| Vol 14 | 1.67/5 | 4.00/5 |
| Vol 15 | 1.57/5 | 3.80/5 |
| Vol 16 | 0.93/5 | 3.90/5 |
| Vol 17 | 2.75/5 | 4.33/5 |
| Vol 18 | 1.50/5 | 4.30/5 |
| Overall | 1.71/5 | 4.33/5 |