| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 1.44/5 | 4.06/5 |
| Vol 2 | 1.69/5 | 4.35/5 |
| Vol 3 | 2.19/5 | 4.51/5 |
| Vol 4 | 1.68/5 | 4.36/5 |
| Vol 5 | 1.67/5 | 4.30/5 |
| Vol 6 | 1.65/5 | 4.30/5 |
| Vol 7 | 1.95/5 | 4.44/5 |
| Vol 8 | 1.71/5 | 4.32/5 |
| Vol 9 | 1.52/5 | 4.06/5 |
| Vol 10 | 1.61/5 | 4.00/5 |
| Vol 11 | 1.74/5 | 4.30/5 |
| Vol 12 | 1.74/5 | 4.31/5 |
| Vol 13 | 1.75/5 | 4.40/5 |
| Vol 14 | 1.65/5 | 4.19/5 |
| Vol 15 | 2.23/5 | 4.52/5 |
| Vol 16 | 1.92/5 | 4.47/5 |
| Vol 17 | 1.76/5 | 4.40/5 |
| Vol 18 | 1.91/5 | 4.49/5 |
| Vol 19 | 1.46/5 | 3.00/5 |
| Vol 20 | 1.75/5 | 4.22/5 |
| Vol 21 | 1.68/5 | 4.25/5 |
| Vol 22 | 1.57/5 | 4.00/5 |
| Vol 23 | 1.64/5 | 4.14/5 |
| Overall | 1.74/5 | 4.52/5 |