| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 2.71/5 | 4.02/5 |
| Vol 2 | 2.67/5 | 3.93/5 |
| Vol 3 | 2.64/5 | 3.79/5 |
| Vol 4 | 3.12/5 | 4.16/5 |
| Vol 5 | 3.00/5 | 3.93/5 |
| Vol 6 | 3.10/5 | 4.09/5 |
| Vol 7 | 3.03/5 | 4.13/5 |
| Vol 8 | 2.86/5 | 4.22/5 |
| Vol 9 | 2.94/5 | 3.98/5 |
| Vol 10 | 2.89/5 | 3.89/5 |
| Vol 11 | 3.00/5 | 4.05/5 |
| Vol 12 | 3.05/5 | 4.20/5 |
| Vol 13 | 2.82/5 | 3.70/5 |
| Vol 14 | 3.21/5 | 3.99/5 |
| Vol 15 | 3.37/5 | 4.29/5 |
| Vol 16 | 3.02/5 | 4.13/5 |
| Vol 17 | 3.04/5 | 4.10/5 |
| Vol 18 | 3.27/5 | 4.10/5 |
| Vol 19 | 2.85/5 | 3.81/5 |
| Vol 20 | 3.22/5 | 4.09/5 |
| Vol 21 | 3.23/5 | 4.14/5 |
| Vol 22 | 3.33/5 | 4.24/5 |
| Vol 23 | 2.96/5 | 3.96/5 |
| Vol 24 | 2.89/5 | 3.94/5 |
| Overall | 3.01/5 | 4.29/5 |