| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 2.57/5 | 3.85/5 |
| Vol 2 | 2.43/5 | 3.79/5 |
| Vol 3 | 2.48/5 | 3.68/5 |
| Vol 4 | 2.39/5 | 3.56/5 |
| Vol 5 | 2.38/5 | 3.78/5 |
| Vol 6 | 2.44/5 | 3.69/5 |
| Vol 7 | 2.13/5 | 3.50/5 |
| Vol 8 | 2.40/5 | 3.61/5 |
| Vol 9 | 2.31/5 | 3.45/5 |
| Vol 10 | 2.41/5 | 3.91/5 |
| Vol 11 | 2.59/5 | 3.89/5 |
| Vol 12 | 2.62/5 | 3.84/5 |
| Vol 13 | 2.60/5 | 4.00/5 |
| Vol 14 | 2.61/5 | 3.87/5 |
| Vol 15 | 2.53/5 | 3.90/5 |
| Vol 16 | 2.54/5 | 3.69/5 |
| Vol 17 | 2.66/5 | 4.13/5 |
| Vol 18 | 2.36/5 | 3.92/5 |
| Vol 19 | 2.32/5 | 3.67/5 |
| Overall | 2.48/5 | 4.13/5 |