| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 1.92/5 | 4.14/5 |
| Vol 2 | 2.03/5 | 4.19/5 |
| Vol 3 | 1.78/5 | 3.33/5 |
| Vol 4 | 2.08/5 | 4.17/5 |
| Vol 5 | 1.89/5 | 4.19/5 |
| Vol 6 | 1.85/5 | 4.27/5 |
| Vol 7 | 1.92/5 | 4.23/5 |
| Vol 8 | 2.21/5 | 4.21/5 |
| Vol 9 | 2.38/5 | 4.30/5 |
| Vol 10 | 2.33/5 | 4.33/5 |
| Vol 11 | 1.81/5 | 4.17/5 |
| Vol 12 | 2.34/5 | 4.21/5 |
| Vol 13 | 2.26/5 | 4.29/5 |
| Vol 14 | 2.31/5 | 4.27/5 |
| Vol 15 | 2.56/5 | 4.35/5 |
| Overall | 2.11/5 | 4.35/5 |