| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 3.15/5 | 4.01/5 |
| Vol 2 | 3.34/5 | 4.23/5 |
| Vol 3 | 3.31/5 | 4.22/5 |
| Vol 4 | 3.43/5 | 4.24/5 |
| Vol 5 | 3.11/5 | 3.94/5 |
| Vol 6 | 3.36/5 | 4.03/5 |
| Vol 7 | 3.52/5 | 4.36/5 |
| Vol 8 | 3.35/5 | 4.19/5 |
| Vol 9 | 3.28/5 | 4.19/5 |
| Vol 10 | 3.60/5 | 4.38/5 |
| Vol 11 | 3.36/5 | 4.17/5 |
| Vol 12 | 3.33/5 | 4.28/5 |
| Vol 13 | 3.38/5 | 4.26/5 |
| Vol 14 | 3.39/5 | 4.29/5 |
| Vol 15 | 3.38/5 | 4.12/5 |
| Vol 16 | 3.13/5 | 4.22/5 |
| Vol 17 | 3.48/5 | 4.33/5 |
| Vol 18 | 3.47/5 | 4.27/5 |
| Vol 19 | 3.30/5 | 4.19/5 |
| Vol 20 | 3.11/5 | 4.17/5 |
| Vol 21 | 3.37/5 | 4.29/5 |
| Overall | 3.34/5 | 4.38/5 |