| Progress | Difficulty | Peak |
|---|---|---|
| Ep 1-21 | 2.26/5 | 4.11/5 |
| Ep 22-42 | 2.29/5 | 4.49/5 |
| Ep 43-63 | 2.31/5 | 4.19/5 |
| Ep 64-84 | 2.43/5 | 4.19/5 |
| Ep 85-105 | 2.30/5 | 4.31/5 |
| Ep 106-126 | 2.27/5 | 3.78/5 |
| Ep 127-147 | 2.23/5 | 3.76/5 |
| Ep 148-168 | 2.31/5 | 4.06/5 |
| Ep 169-189 | 2.21/5 | 3.89/5 |
| Ep 190-210 | 2.20/5 | 3.98/5 |
| Ep 211-231 | 2.32/5 | 3.82/5 |
| Ep 232-252 | 2.30/5 | 4.22/5 |
| Ep 253-273 | 2.27/5 | 4.06/5 |
| Ep 274-294 | 2.30/5 | 4.05/5 |
| Ep 295-315 | 2.27/5 | 4.05/5 |
| Ep 316-336 | 2.27/5 | 4.06/5 |
| Ep 337-357 | 2.28/5 | 4.21/5 |
| Ep 358-378 | 2.27/5 | 4.17/5 |
| Ep 379-399 | 2.28/5 | 4.13/5 |
| Ep 400-420 | 2.35/5 | 4.12/5 |
| Ep 421-441 | 2.29/5 | 3.94/5 |
| Ep 442-462 | 2.28/5 | 4.21/5 |
| Ep 463-483 | 2.24/5 | 3.79/5 |
| Ep 484-504 | 2.38/5 | 4.16/5 |
| Ep 505-514 | 2.33/5 | 4.09/5 |
| Overall | 2.29/5 | 4.49/5 |