| Progress | Difficulty | Peak |
|---|---|---|
| Ep 1-13 | 2.38/5 | 3.23/5 |
| Ep 14-26 | 2.40/5 | 3.35/5 |
| Ep 27-39 | 2.40/5 | 3.27/5 |
| Ep 40-52 | 2.38/5 | 3.45/5 |
| Ep 53-65 | 2.32/5 | 2.90/5 |
| Ep 66-78 | 2.37/5 | 3.06/5 |
| Ep 79-91 | 2.35/5 | 3.11/5 |
| Ep 92-104 | 2.38/5 | 3.11/5 |
| Ep 105-117 | 2.37/5 | 2.99/5 |
| Ep 118-130 | 2.34/5 | 2.99/5 |
| Ep 131-143 | 2.35/5 | 2.96/5 |
| Ep 144-156 | 2.31/5 | 3.10/5 |
| Ep 157-169 | 2.32/5 | 3.08/5 |
| Ep 170-182 | 2.29/5 | 3.20/5 |
| Ep 183-195 | 2.33/5 | 2.93/5 |
| Ep 196-208 | 2.39/5 | 3.28/5 |
| Ep 209-221 | 2.40/5 | 3.09/5 |
| Ep 222-234 | 2.31/5 | 2.99/5 |
| Ep 235-247 | 2.18/5 | 2.91/5 |
| Ep 248-260 | 2.20/5 | 2.91/5 |
| Ep 261-273 | 2.16/5 | 2.96/5 |
| Ep 274-286 | 2.20/5 | 2.88/5 |
| Ep 287-299 | 2.18/5 | 2.91/5 |
| Ep 300-312 | 2.25/5 | 2.95/5 |
| Ep 313-317 | 2.29/5 | 2.91/5 |
| Overall | 2.31/5 | 3.45/5 |