| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 2.54/5 | 4.29/5 |
| Vol 2 | 2.76/5 | 4.35/5 |
| Vol 3 | 2.69/5 | 4.35/5 |
| Vol 4 | 2.53/5 | 4.32/5 |
| Vol 5 | 2.83/5 | 4.44/5 |
| Vol 6 | 2.70/5 | 4.40/5 |
| Vol 7 | 2.86/5 | 4.41/5 |
| Vol 8 | 2.80/5 | 4.43/5 |
| Vol 9 | 2.62/5 | 4.35/5 |
| Vol 10 | 2.93/5 | 4.51/5 |
| Vol 11 | 2.78/5 | 4.46/5 |
| Vol 12 | 3.38/5 | 4.55/5 |
| Vol 13 | 3.54/5 | 4.57/5 |
| Vol 14 | 3.65/5 | 4.56/5 |
| Vol 15 | 3.29/5 | 4.54/5 |
| Vol 16 | 3.50/5 | 4.57/5 |
| Vol 17 | 2.63/5 | 4.36/5 |
| Vol 18 | 3.45/5 | 4.53/5 |
| Vol 19 | 3.00/5 | 4.47/5 |
| Vol 20 | 2.82/5 | 4.45/5 |
| Vol 21 | 3.19/5 | 4.53/5 |
| Vol 22 | 3.20/5 | 4.55/5 |
| Overall | 2.99/5 | 4.57/5 |