| 模型 | 显著性 | AIC值 |
| ARIMA (0,1,0) | *** | 4903 |
| ARIMA (1,1,0) | *** | 4882 |
| ARIMA (0,1,1) | *** | 4815 |
| ARIMA (0,1,2) | *** | 4805 |
| ARIMA (0,1,3) | *** | 4801 |
| ARIMA (0,1,4) | *** | 4803 |