| Progress | Difficulty | Peak |
|---|---|---|
| Ep 1-21 | 2.67/5 | 4.50/5 |
| Ep 22-42 | 2.65/5 | 4.88/5 |
| Ep 43-63 | 2.72/5 | 4.58/5 |
| Ep 64-84 | 2.82/5 | 4.58/5 |
| Ep 85-105 | 2.70/5 | 4.70/5 |
| Ep 106-126 | 2.66/5 | 4.17/5 |
| Ep 127-147 | 2.63/5 | 4.15/5 |
| Ep 148-168 | 2.71/5 | 4.45/5 |
| Ep 169-189 | 2.60/5 | 4.28/5 |
| Ep 190-210 | 2.60/5 | 4.37/5 |
| Ep 211-231 | 2.72/5 | 4.21/5 |
| Ep 232-252 | 2.69/5 | 4.61/5 |
| Ep 253-273 | 2.67/5 | 4.45/5 |
| Ep 274-294 | 2.69/5 | 4.44/5 |
| Ep 295-315 | 2.67/5 | 4.44/5 |
| Ep 316-336 | 2.67/5 | 4.45/5 |
| Ep 337-357 | 2.67/5 | 4.60/5 |
| Ep 358-378 | 2.66/5 | 4.56/5 |
| Ep 379-399 | 2.67/5 | 4.52/5 |
| Ep 400-420 | 2.75/5 | 4.51/5 |
| Ep 421-441 | 2.68/5 | 4.33/5 |
| Ep 442-462 | 2.68/5 | 4.60/5 |
| Ep 463-483 | 2.64/5 | 4.18/5 |
| Ep 484-504 | 2.77/5 | 4.55/5 |
| Ep 505-514 | 2.73/5 | 4.48/5 |
| Overall | 2.68/5 | 4.88/5 |