| Progress | Difficulty | Peak |
|---|---|---|
| Ep 1-26 | 1.68/5 | 4.25/5 |
| Ep 27-52 | 1.75/5 | 4.39/5 |
| Ep 53-78 | 1.84/5 | 4.31/5 |
| Ep 79-104 | 1.98/5 | 4.26/5 |
| Ep 105-130 | 1.57/5 | 4.36/5 |
| Ep 131-156 | 2.01/5 | 4.35/5 |
| Ep 157-182 | 1.60/5 | 4.25/5 |
| Ep 183-208 | 1.89/5 | 4.36/5 |
| Ep 209-234 | 1.73/5 | 4.26/5 |
| Ep 235-260 | 1.62/5 | 4.45/5 |
| Ep 261-286 | 1.41/5 | 4.52/5 |
| Ep 287-312 | 1.47/5 | 4.30/5 |
| Ep 313-338 | 1.23/5 | 4.16/5 |
| Ep 339-364 | 2.02/5 | 4.19/5 |
| Ep 365-390 | 2.48/5 | 4.32/5 |
| Ep 391-416 | 2.35/5 | 4.14/5 |
| Ep 417-442 | 1.85/5 | 4.17/5 |
| Ep 443-468 | 1.96/5 | 4.26/5 |
| Ep 469-494 | 2.49/5 | 4.10/5 |
| Ep 495-520 | 2.43/5 | 4.45/5 |
| Ep 521-546 | 2.35/5 | 4.30/5 |
| Ep 547-572 | 2.28/5 | 4.46/5 |
| Ep 573-598 | 2.36/5 | 4.08/5 |
| Ep 599-624 | 2.34/5 | 4.12/5 |
| Ep 625-627 | 2.52/5 | 3.92/5 |
| Overall | 1.95/5 | 4.52/5 |