| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 3.25/5 | 4.57/5 |
| Vol 2 | 3.31/5 | 4.57/5 |
| Vol 3 | 3.61/5 | 4.58/5 |
| Vol 4 | 3.66/5 | 4.59/5 |
| Vol 5 | 2.97/5 | 4.42/5 |
| Vol 6 | 2.84/5 | 4.46/5 |
| Vol 7 | 3.21/5 | 4.54/5 |
| Vol 8 | 2.94/5 | 4.49/5 |
| Vol 9 | 2.89/5 | 4.50/5 |
| Vol 10 | 2.92/5 | 4.50/5 |
| Vol 11 | 2.91/5 | 4.50/5 |
| Vol 12 | 2.84/5 | 4.43/5 |
| Vol 13 | 3.22/5 | 4.59/5 |
| Vol 14 | 2.92/5 | 4.52/5 |
| Vol 15 | 3.31/5 | 4.57/5 |
| Vol 16 | 2.78/5 | 4.45/5 |
| Vol 17 | 2.92/5 | 4.48/5 |
| Vol 18 | 3.25/5 | 4.54/5 |
| Vol 19 | 3.77/5 | 4.62/5 |
| Vol 20 | 3.00/5 | 4.56/5 |
| Overall | 3.16/5 | 4.62/5 |