| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 3.26/5 | 3.74/5 |
| Vol 2 | 3.35/5 | 3.75/5 |
| Vol 3 | 3.34/5 | 3.84/5 |
| Vol 4 | 3.32/5 | 3.80/5 |
| Vol 5 | 3.36/5 | 4.00/5 |
| Vol 6 | 3.46/5 | 4.10/5 |
| Vol 7 | 3.40/5 | 4.02/5 |
| Vol 8 | 3.27/5 | 3.78/5 |
| Vol 9 | 3.26/5 | 3.78/5 |
| Vol 10 | 3.37/5 | 3.84/5 |
| Vol 11 | 3.31/5 | 3.79/5 |
| Vol 12 | 3.29/5 | 3.79/5 |
| Vol 13 | 3.35/5 | 3.87/5 |
| Vol 14 | 3.34/5 | 4.05/5 |
| Vol 15 | 3.38/5 | 3.91/5 |
| Vol 16 | 3.35/5 | 3.95/5 |
| Vol 17 | 3.27/5 | 3.82/5 |
| Vol 18 | 3.31/5 | 3.80/5 |
| Vol 19 | 3.33/5 | 3.74/5 |
| Vol 20 | 3.23/5 | 3.81/5 |
| Vol 21 | 3.35/5 | 3.80/5 |
| Vol 22 | 3.39/5 | 3.81/5 |
| Overall | 3.33/5 | 4.10/5 |