| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 3.34/5 | 3.98/5 |
| Vol 2 | 3.45/5 | 4.24/5 |
| Vol 3 | 3.55/5 | 4.38/5 |
| Vol 4 | 3.57/5 | 4.39/5 |
| Vol 5 | 3.69/5 | 4.50/5 |
| Vol 6 | 3.54/5 | 4.33/5 |
| Vol 7 | 3.49/5 | 4.30/5 |
| Vol 8 | 3.81/5 | 4.57/5 |
| Vol 9 | 3.62/5 | 4.49/5 |
| Vol 10 | 3.72/5 | 4.49/5 |
| Vol 11 | 3.81/5 | 4.59/5 |
| Vol 12 | 3.82/5 | 4.60/5 |
| Vol 13 | 3.84/5 | 4.60/5 |
| Vol 14 | 3.80/5 | 4.59/5 |
| Vol 15 | 3.95/5 | 4.65/5 |
| Vol 16 | 3.95/5 | 4.65/5 |
| Overall | 3.66/5 | 4.65/5 |