| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 3.21/5 | 3.87/5 |
| Vol 2 | 3.30/5 | 3.82/5 |
| Vol 3 | 3.39/5 | 3.88/5 |
| Vol 4 | 3.33/5 | 3.87/5 |
| Vol 5 | 3.43/5 | 3.99/5 |
| Vol 6 | 3.38/5 | 3.92/5 |
| Vol 7 | 3.39/5 | 3.84/5 |
| Vol 8 | 3.36/5 | 3.84/5 |
| Vol 9 | 3.29/5 | 3.77/5 |
| Vol 10 | 3.35/5 | 3.72/5 |
| Vol 11 | 3.36/5 | 3.78/5 |
| Vol 12 | 3.27/5 | 3.91/5 |
| Vol 13 | 3.32/5 | 3.69/5 |
| Vol 14 | 3.49/5 | 4.16/5 |
| Vol 15 | 3.48/5 | 4.06/5 |
| Vol 16 | 3.44/5 | 4.17/5 |
| Vol 17 | 3.44/5 | 4.09/5 |
| Vol 18 | 3.42/5 | 3.97/5 |
| Vol 19 | 3.52/5 | 4.19/5 |
| Vol 20 | 3.45/5 | 4.06/5 |
| Vol 21 | 3.50/5 | 4.14/5 |
| Vol 22 | 3.37/5 | 4.03/5 |
| Vol 23 | 3.35/5 | 3.86/5 |
| Overall | 3.38/5 | 4.19/5 |