| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 3.80/5 | 4.47/5 |
| Vol 2 | 3.84/5 | 4.48/5 |
| Vol 3 | 3.69/5 | 4.41/5 |
| Vol 4 | 3.89/5 | 4.49/5 |
| Vol 5 | 3.72/5 | 4.44/5 |
| Vol 6 | 3.53/5 | 4.36/5 |
| Vol 7 | 3.59/5 | 4.39/5 |
| Vol 8 | 3.66/5 | 4.40/5 |
| Vol 9 | 3.58/5 | 4.37/5 |
| Vol 10 | 3.78/5 | 4.45/5 |
| Vol 11 | 3.82/5 | 4.47/5 |
| Vol 12 | 3.86/5 | 4.48/5 |
| Vol 13 | 3.85/5 | 4.48/5 |
| Vol 14 | 3.89/5 | 4.49/5 |
| Vol 15 | 3.89/5 | 4.49/5 |
| Vol 16 | 3.98/5 | 4.53/5 |
| Vol 17 | 3.57/5 | 4.38/5 |
| Vol 18 | 3.60/5 | 4.38/5 |
| Vol 19 | 3.62/5 | 4.37/5 |
| Vol 20 | 3.92/5 | 4.51/5 |
| Vol 21 | 3.57/5 | 4.34/5 |
| Overall | 3.76/5 | 4.53/5 |