| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 1.73/5 | 3.00/5 |
| Vol 2 | 1.45/5 | 2.77/5 |
| Vol 3 | 1.63/5 | 4.06/5 |
| Vol 4 | 1.57/5 | 4.03/5 |
| Vol 5 | 1.45/5 | 2.45/5 |
| Vol 6 | 1.56/5 | 2.94/5 |
| Vol 7 | 1.55/5 | 4.12/5 |
| Vol 8 | 1.40/5 | 2.57/5 |
| Vol 9 | 1.55/5 | 2.85/5 |
| Vol 10 | 1.73/5 | 4.00/5 |
| Vol 11 | 1.73/5 | 4.25/5 |
| Vol 12 | 1.83/5 | 4.21/5 |
| Vol 13 | 1.69/5 | 3.33/5 |
| Vol 14 | 1.52/5 | 3.25/5 |
| Vol 15 | 1.56/5 | 4.09/5 |
| Vol 16 | 2.06/5 | 4.44/5 |
| Vol 17 | 1.74/5 | 4.25/5 |
| Vol 18 | 1.84/5 | 4.29/5 |
| Vol 19 | 1.66/5 | 4.06/5 |
| Vol 20 | 1.52/5 | 2.90/5 |
| Overall | 1.64/5 | 4.44/5 |