| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 2.43/5 | 4.36/5 |
| Vol 2 | 2.76/5 | 4.57/5 |
| Vol 3 | 2.83/5 | 4.50/5 |
| Vol 4 | 2.88/5 | 4.53/5 |
| Vol 5 | 3.38/5 | 4.67/5 |
| Vol 6 | 3.95/5 | 4.75/5 |
| Vol 7 | 2.99/5 | 4.47/5 |
| Vol 8 | 2.61/5 | 4.47/5 |
| Vol 9 | 2.88/5 | 4.47/5 |
| Vol 10 | 2.93/5 | 4.57/5 |
| Vol 11 | 2.98/5 | 4.63/5 |
| Vol 12 | 2.99/5 | 4.55/5 |
| Vol 13 | 3.07/5 | 4.58/5 |
| Vol 14 | 3.04/5 | 4.58/5 |
| Vol 15 | 3.16/5 | 4.68/5 |
| Vol 16 | 3.33/5 | 4.68/5 |
| Vol 17 | 3.06/5 | 4.64/5 |
| Overall | 3.01/5 | 4.75/5 |