| 误差检验 | ||||
| 年份 | 原始值 | 预测值 | 残差 | 相对误差 |
| 2018 | 4042 | 4117.18957 | −75.18957035 | 0.018602 |
| 2019 | 4426 | 4372.841076 | 53.15892404 | 0.012011 |
| 2020 | 4751 | 4644.366928 | 106.6330723 | 0.022444 |
| 2021 | 4853 | 4932.752822 | −79.75282235 | 0.016434 |
| 平均相对误差 | 0.017373 | |||