| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 3.52/5 | 4.55/5 |
| Vol 2 | 2.50/5 | 4.17/5 |
| Vol 3 | 2.64/5 | 4.21/5 |
| Vol 4 | 2.71/5 | 4.33/5 |
| Vol 5 | 2.68/5 | 4.23/5 |
| Vol 6 | 2.78/5 | 4.36/5 |
| Vol 7 | 2.80/5 | 4.25/5 |
| Vol 8 | 2.84/5 | 4.38/5 |
| Vol 9 | 2.67/5 | 4.19/5 |
| Vol 10 | 2.85/5 | 4.29/5 |
| Vol 11 | 2.66/5 | 4.29/5 |
| Vol 12 | 2.47/5 | 4.12/5 |
| Vol 13 | 2.81/5 | 4.14/5 |
| Vol 14 | 2.63/5 | 4.09/5 |
| Vol 15 | 2.58/5 | 3.91/5 |
| Vol 16 | 2.77/5 | 4.27/5 |
| Overall | 2.74/5 | 4.55/5 |