| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 3.11/5 | 4.27/5 |
| Vol 2 | 3.20/5 | 4.32/5 |
| Vol 3 | 3.28/5 | 4.25/5 |
| Vol 4 | 3.20/5 | 4.37/5 |
| Vol 5 | 3.40/5 | 4.37/5 |
| Vol 6 | 3.20/5 | 4.27/5 |
| Vol 7 | 3.09/5 | 4.20/5 |
| Vol 8 | 3.21/5 | 4.23/5 |
| Vol 9 | 3.29/5 | 4.36/5 |
| Vol 10 | 3.28/5 | 4.33/5 |
| Vol 11 | 3.37/5 | 4.39/5 |
| Vol 12 | 3.68/5 | 4.53/5 |
| Vol 13 | 3.19/5 | 4.42/5 |
| Vol 14 | 3.69/5 | 4.54/5 |
| Vol 15 | 3.71/5 | 4.53/5 |
| Vol 16 | 3.35/5 | 4.31/5 |
| Vol 17 | 3.62/5 | 4.52/5 |
| Vol 18 | 3.79/5 | 4.53/5 |
| Overall | 3.37/5 | 4.54/5 |