| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 2.77/5 | 4.40/5 |
| Vol 2 | 2.74/5 | 4.45/5 |
| Vol 3 | 3.64/5 | 4.57/5 |
| Vol 4 | 2.86/5 | 4.52/5 |
| Vol 5 | 2.79/5 | 4.36/5 |
| Vol 6 | 2.82/5 | 4.39/5 |
| Vol 7 | 3.60/5 | 4.56/5 |
| Vol 8 | 3.12/5 | 4.51/5 |
| Vol 9 | 2.94/5 | 4.48/5 |
| Vol 10 | 2.93/5 | 4.40/5 |
| Vol 11 | 2.81/5 | 4.43/5 |
| Vol 12 | 4.00/5 | 4.60/5 |
| Vol 13 | 2.89/5 | 4.41/5 |
| Vol 14 | 2.54/5 | 4.38/5 |
| Vol 15 | 3.15/5 | 4.47/5 |
| Vol 16 | 2.53/5 | 4.43/5 |
| Vol 17 | 3.00/5 | 4.54/5 |
| Vol 18 | 3.89/5 | 4.59/5 |
| Vol 19 | 2.62/5 | 4.38/5 |
| Vol 20 | 2.82/5 | 4.38/5 |
| Vol 21 | 2.77/5 | 4.41/5 |
| Vol 22 | 3.23/5 | 4.45/5 |
| Vol 23 | 3.10/5 | 4.46/5 |
| Vol 24 | 3.10/5 | 4.40/5 |
| Overall | 3.03/5 | 4.60/5 |