| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 3.52/5 | 4.42/5 |
| Vol 2 | 3.34/5 | 4.29/5 |
| Vol 3 | 3.56/5 | 4.44/5 |
| Vol 4 | 3.43/5 | 4.34/5 |
| Vol 5 | 3.72/5 | 4.49/5 |
| Vol 6 | 3.68/5 | 4.49/5 |
| Vol 7 | 3.77/5 | 4.54/5 |
| Vol 8 | 3.50/5 | 4.38/5 |
| Vol 9 | 3.60/5 | 4.41/5 |
| Vol 10 | 3.88/5 | 4.56/5 |
| Vol 11 | 3.69/5 | 4.48/5 |
| Vol 12 | 3.66/5 | 4.47/5 |
| Vol 13 | 3.71/5 | 4.49/5 |
| Vol 14 | 3.67/5 | 4.45/5 |
| Vol 15 | 3.61/5 | 4.44/5 |
| Vol 16 | 3.47/5 | 4.42/5 |
| Vol 17 | 3.81/5 | 4.55/5 |
| Vol 18 | 4.00/5 | 4.61/5 |
| Vol 19 | 3.39/5 | 4.35/5 |
| Overall | 3.63/5 | 4.61/5 |