| 模型 | AIC值 |
| ARIMA(4, 1, 1) | 40942.84 |
| ARIMA(4, 1, 2) | 40941.54 |
| ARIMA(5, 1, 2) | 40937.11 |
| ARIMA(5, 1, 1) | 40935.94 |
| ARIMA(5, 1, 3) | 40929.03 |
| ARIMA(5, 1, 4) | 40930.49 |
| ARIMA(5, 1, 5) | 40930.52 |
| ARIMA(5, 1, 6) | 40914.99 |
| ARIMA(6, 1, 6) | 40916.78 |
| ARIMA(6, 1, 5) | 40916.50 |