| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 1.53/5 | 1.93/5 |
| Vol 2 | 1.75/5 | 2.88/5 |
| Vol 3 | 1.60/5 | 2.70/5 |
| Vol 4 | 1.84/5 | 3.18/5 |
| Vol 5 | 1.80/5 | 2.81/5 |
| Vol 6 | 1.99/5 | 2.88/5 |
| Vol 7 | 1.77/5 | 2.96/5 |
| Vol 8 | 1.76/5 | 2.86/5 |
| Vol 9 | 1.72/5 | 2.67/5 |
| Vol 10 | 2.10/5 | 2.95/5 |
| Vol 11 | 1.70/5 | 2.88/5 |
| Vol 12 | 2.03/5 | 3.01/5 |
| Vol 13 | 1.70/5 | 2.89/5 |
| Vol 14 | 1.77/5 | 3.18/5 |
| Vol 15 | 1.83/5 | 3.10/5 |
| Vol 16 | 2.26/5 | 3.28/5 |
| Vol 17 | 2.15/5 | 3.71/5 |
| Vol 18 | 1.84/5 | 2.93/5 |
| Vol 19 | 2.04/5 | 3.13/5 |
| Vol 20 | 1.38/5 | 2.15/5 |
| Overall | 1.83/5 | 3.71/5 |