| 年份 | 指标 | 系数 | 标准系数 | t | pt | VIF |
| 2019* | (常量) | 3.078 |
| 2.379 | 0.076 |
|
| GDP | 0.537 | 0.559 | 1.767 | 0.152 | 7.783 | |
| IS | −0.024 | −0.938 | −2.098 | 0.104 | 5.526 | |
| FAI | 0.013 | 0.091 | 0.346 | 0.747 | 5.407 | |
| CEU | −0.896 | −1.625 | −5.903 | 0.004 | 5.885 | |
| 2020* | (常量) | 3.085 | 4.445 | 0.011 | ||
| GDP | 0.381 | 0.420 | 2.448 | 0.071 | 6.452 | |
| IS | −0.002 | −0.125 | −0.812 | 0.463 | 5.218 | |
| FAI | 0.077 | 0.394 | 3.404 | 0.027 | 2.926 | |
| CEU | −0.554 | −0.977 | −11.168 | 0.000 | 1.676 |