| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 2.81/5 | 4.41/5 |
| Vol 2 | 2.87/5 | 4.48/5 |
| Vol 3 | 2.73/5 | 4.39/5 |
| Vol 4 | 2.84/5 | 4.54/5 |
| Vol 5 | 2.70/5 | 4.10/5 |
| Vol 6 | 3.02/5 | 4.57/5 |
| Vol 7 | 3.04/5 | 4.71/5 |
| Vol 8 | 2.91/5 | 4.56/5 |
| Vol 9 | 2.78/5 | 4.20/5 |
| Vol 10 | 2.85/5 | 4.60/5 |
| Vol 11 | 2.98/5 | 4.63/5 |
| Vol 12 | 3.00/5 | 4.48/5 |
| Vol 13 | 3.00/5 | 4.66/5 |
| Vol 14 | 3.40/5 | 4.72/5 |
| Vol 15 | 3.15/5 | 4.62/5 |
| Vol 16 | 3.18/5 | 4.75/5 |
| Vol 17 | 2.76/5 | 4.46/5 |
| Vol 18 | 3.09/5 | 4.69/5 |
| Vol 19 | 3.10/5 | 4.60/5 |
| Vol 20 | 3.39/5 | 4.70/5 |
| Vol 21 | 3.10/5 | 4.67/5 |
| Vol 22 | 3.24/5 | 4.72/5 |
| Vol 23 | 3.27/5 | 4.71/5 |
| Vol 24 | 3.80/5 | 4.82/5 |
| Overall | 3.04/5 | 4.82/5 |