| 变量名 | VIF | 1/VIF |
| URB | 2.530 | 0.395 |
| ERS | 2.490 | 0.401 |
| GI | 2.120 | 0.471 |
| IS | 2.000 | 0.500 |
| GDP | 1.850 | 0.540 |
| GF | 1.590 | 0.628 |
| Mean | VIF | 2.100 |