| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 1.88/5 | 3.24/5 |
| Vol 2 | 2.09/5 | 3.42/5 |
| Vol 3 | 2.08/5 | 3.44/5 |
| Vol 4 | 2.00/5 | 3.29/5 |
| Vol 5 | 1.86/5 | 3.35/5 |
| Vol 6 | 1.80/5 | 3.45/5 |
| Vol 7 | 1.50/5 | 3.45/5 |
| Vol 8 | 1.55/5 | 3.34/5 |
| Vol 9 | 2.23/5 | 3.49/5 |
| Vol 10 | 2.24/5 | 3.59/5 |
| Vol 11 | 2.10/5 | 3.53/5 |
| Vol 12 | 2.12/5 | 3.34/5 |
| Vol 13 | 2.11/5 | 3.50/5 |
| Vol 14 | 1.79/5 | 3.43/5 |
| Vol 15 | 2.06/5 | 3.30/5 |
| Vol 16 | 2.38/5 | 3.63/5 |
| Vol 17 | 2.36/5 | 3.56/5 |
| Vol 18 | 2.47/5 | 4.12/5 |
| Overall | 2.03/5 | 4.12/5 |