| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 2.24/5 | 3.80/5 |
| Vol 2 | 2.62/5 | 4.29/5 |
| Vol 3 | 2.50/5 | 4.30/5 |
| Vol 4 | 2.49/5 | 4.33/5 |
| Vol 5 | 2.50/5 | 4.29/5 |
| Vol 6 | 2.70/5 | 4.25/5 |
| Vol 7 | 2.69/5 | 4.40/5 |
| Vol 8 | 2.98/5 | 4.52/5 |
| Vol 9 | 2.97/5 | 4.49/5 |
| Vol 10 | 3.07/5 | 4.51/5 |
| Vol 11 | 2.77/5 | 4.40/5 |
| Vol 12 | 3.00/5 | 4.48/5 |
| Vol 13 | 2.20/5 | 4.12/5 |
| Vol 14 | 2.12/5 | 3.54/5 |
| Vol 15 | 2.41/5 | 4.14/5 |
| Vol 16 | 2.60/5 | 4.35/5 |
| Overall | 2.62/5 | 4.52/5 |