| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 2.84/5 | 3.95/5 |
| Vol 2 | 2.91/5 | 3.89/5 |
| Vol 3 | 2.71/5 | 3.81/5 |
| Vol 4 | 2.79/5 | 4.03/5 |
| Vol 5 | 2.56/5 | 3.76/5 |
| Vol 6 | 2.73/5 | 3.90/5 |
| Vol 7 | 2.68/5 | 3.87/5 |
| Vol 8 | 2.84/5 | 4.12/5 |
| Vol 9 | 2.76/5 | 3.94/5 |
| Vol 10 | 2.73/5 | 4.03/5 |
| Vol 11 | 3.10/5 | 4.19/5 |
| Vol 12 | 2.90/5 | 4.00/5 |
| Vol 13 | 2.91/5 | 4.27/5 |
| Vol 14 | 2.82/5 | 4.09/5 |
| Vol 15 | 2.85/5 | 4.29/5 |
| Vol 16 | 2.86/5 | 4.23/5 |
| Vol 17 | 2.84/5 | 3.97/5 |
| Vol 18 | 2.76/5 | 3.97/5 |
| Vol 19 | 2.75/5 | 4.12/5 |
| Vol 20 | 2.87/5 | 4.41/5 |
| Vol 21 | 3.75/5 | 4.59/5 |
| Vol 22 | 2.87/5 | 4.30/5 |
| Vol 23 | 2.57/5 | 3.95/5 |
| Overall | 2.84/5 | 4.59/5 |