| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 2.94/5 | 4.15/5 |
| Vol 2 | 3.32/5 | 4.48/5 |
| Vol 3 | 3.14/5 | 4.28/5 |
| Vol 4 | 3.15/5 | 4.36/5 |
| Vol 5 | 2.88/5 | 4.44/5 |
| Vol 6 | 3.60/5 | 4.57/5 |
| Vol 7 | 3.00/5 | 4.47/5 |
| Vol 8 | 3.31/5 | 4.44/5 |
| Vol 9 | 2.54/5 | 3.84/5 |
| Vol 10 | 2.69/5 | 4.23/5 |
| Vol 11 | 2.00/5 | 3.67/5 |
| Vol 12 | 2.62/5 | 4.00/5 |
| Vol 13 | 1.00/5 | 4.04/5 |
| Vol 14 | 3.22/5 | 4.38/5 |
| Vol 15 | 3.06/5 | 4.30/5 |
| Vol 16 | 0.85/5 | 3.53/5 |
| Overall | 2.71/5 | 4.57/5 |