| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 2.73/5 | 4.21/5 |
| Vol 2 | 2.90/5 | 4.35/5 |
| Vol 3 | 2.84/5 | 4.42/5 |
| Vol 4 | 2.58/5 | 4.25/5 |
| Vol 5 | 2.81/5 | 4.44/5 |
| Vol 6 | 3.39/5 | 4.51/5 |
| Vol 7 | 2.93/5 | 4.46/5 |
| Vol 8 | 2.93/5 | 4.45/5 |
| Vol 9 | 2.63/5 | 4.36/5 |
| Vol 10 | 2.90/5 | 4.47/5 |
| Vol 11 | 2.92/5 | 4.48/5 |
| Vol 12 | 3.09/5 | 4.45/5 |
| Vol 13 | 3.55/5 | 4.57/5 |
| Vol 14 | 2.96/5 | 4.48/5 |
| Vol 15 | 2.95/5 | 4.45/5 |
| Vol 16 | 3.79/5 | 4.58/5 |
| Vol 17 | 2.92/5 | 4.43/5 |
| Vol 18 | 3.33/5 | 4.52/5 |
| Vol 19 | 3.94/5 | 4.59/5 |
| Vol 20 | 3.92/5 | 4.59/5 |
| Vol 21 | 3.46/5 | 4.53/5 |
| Vol 22 | 3.54/5 | 4.55/5 |
| Vol 23 | 2.98/5 | 4.46/5 |
| Vol 24 | 3.41/5 | 4.54/5 |
| Vol 25 | 3.62/5 | 4.55/5 |
| Overall | 3.16/5 | 4.59/5 |