| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 3.32/5 | 3.98/5 |
| Vol 2 | 3.41/5 | 3.93/5 |
| Vol 3 | 3.50/5 | 3.99/5 |
| Vol 4 | 3.44/5 | 3.98/5 |
| Vol 5 | 3.54/5 | 4.10/5 |
| Vol 6 | 3.49/5 | 4.03/5 |
| Vol 7 | 3.50/5 | 3.95/5 |
| Vol 8 | 3.47/5 | 3.95/5 |
| Vol 9 | 3.40/5 | 3.88/5 |
| Vol 10 | 3.46/5 | 3.83/5 |
| Vol 11 | 3.47/5 | 3.89/5 |
| Vol 12 | 3.38/5 | 4.02/5 |
| Vol 13 | 3.43/5 | 3.80/5 |
| Vol 14 | 3.60/5 | 4.27/5 |
| Vol 15 | 3.59/5 | 4.17/5 |
| Vol 16 | 3.55/5 | 4.28/5 |
| Vol 17 | 3.55/5 | 4.20/5 |
| Vol 18 | 3.53/5 | 4.08/5 |
| Vol 19 | 3.63/5 | 4.30/5 |
| Vol 20 | 3.56/5 | 4.17/5 |
| Vol 21 | 3.62/5 | 4.38/5 |
| Vol 22 | 3.55/5 | 4.25/5 |
| Vol 23 | 3.50/5 | 4.18/5 |
| Overall | 3.50/5 | 4.38/5 |