| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 2.13/5 | 3.41/5 |
| Vol 2 | 2.34/5 | 4.41/5 |
| Vol 3 | 2.30/5 | 3.68/5 |
| Vol 4 | 2.51/5 | 3.94/5 |
| Vol 5 | 2.29/5 | 4.44/5 |
| Vol 6 | 2.15/5 | 3.38/5 |
| Vol 7 | 2.48/5 | 4.41/5 |
| Vol 8 | 2.32/5 | 4.28/5 |
| Vol 9 | 2.44/5 | 4.44/5 |
| Vol 10 | 2.18/5 | 4.31/5 |
| Vol 11 | 2.27/5 | 3.79/5 |
| Vol 12 | 2.21/5 | 3.41/5 |
| Vol 13 | 2.71/5 | 4.68/5 |
| Vol 14 | 2.58/5 | 4.53/5 |
| Vol 15 | 2.36/5 | 4.53/5 |
| Vol 16 | 2.67/5 | 4.62/5 |
| Vol 17 | 1.95/5 | 3.21/5 |
| Vol 18 | 2.01/5 | 3.27/5 |
| Vol 19 | 2.04/5 | 4.41/5 |
| Vol 20 | 1.92/5 | 3.08/5 |
| Overall | 2.31/5 | 4.68/5 |