| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 2.74/5 | 4.47/5 |
| Vol 2 | 2.95/5 | 4.45/5 |
| Vol 3 | 2.50/5 | 4.35/5 |
| Vol 4 | 2.92/5 | 4.49/5 |
| Vol 5 | 2.60/5 | 4.38/5 |
| Vol 6 | 2.75/5 | 4.36/5 |
| Vol 7 | 2.78/5 | 4.40/5 |
| Vol 8 | 2.55/5 | 4.12/5 |
| Vol 9 | 2.73/5 | 4.40/5 |
| Vol 10 | 2.78/5 | 4.36/5 |
| Vol 11 | 2.75/5 | 4.40/5 |
| Vol 12 | 2.67/5 | 4.29/5 |
| Vol 13 | 2.87/5 | 4.46/5 |
| Vol 14 | 2.63/5 | 4.32/5 |
| Vol 15 | 2.74/5 | 4.33/5 |
| Vol 16 | 2.85/5 | 4.38/5 |
| Vol 17 | 2.73/5 | 4.36/5 |
| Vol 18 | 2.94/5 | 4.50/5 |
| Vol 19 | 2.64/5 | 4.27/5 |
| Vol 20 | 2.86/5 | 4.38/5 |
| Vol 21 | 2.80/5 | 4.40/5 |
| Vol 22 | 2.53/5 | 4.30/5 |
| Overall | 2.74/5 | 4.50/5 |