| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 2.68/5 | 4.14/5 |
| Vol 2 | 2.58/5 | 4.00/5 |
| Vol 3 | 2.78/5 | 4.46/5 |
| Vol 4 | 2.89/5 | 4.31/5 |
| Vol 5 | 2.58/5 | 4.04/5 |
| Vol 6 | 2.78/5 | 4.42/5 |
| Vol 7 | 2.67/5 | 4.34/5 |
| Vol 8 | 2.63/5 | 4.28/5 |
| Vol 9 | 2.93/5 | 4.48/5 |
| Vol 10 | 2.91/5 | 4.37/5 |
| Vol 11 | 2.72/5 | 4.39/5 |
| Vol 12 | 3.04/5 | 4.34/5 |
| Vol 13 | 3.13/5 | 4.64/5 |
| Vol 14 | 2.80/5 | 4.39/5 |
| Vol 15 | 2.87/5 | 4.46/5 |
| Vol 16 | 2.70/5 | 4.50/5 |
| Vol 17 | 2.81/5 | 4.21/5 |
| Vol 18 | 3.29/5 | 4.64/5 |
| Vol 19 | 2.63/5 | 4.39/5 |
| Vol 20 | 3.14/5 | 4.60/5 |
| Overall | 2.83/5 | 4.64/5 |