| Variable | VIF | 1/VIF |
| Composition | 3.39 | 0.2946 |
| Import | 3.17 | 0.3151 |
| Export | 2.99 | 0.3343 |
| Pop | 2.29 | 0.4327 |
| FD | 2.00 | 0.4998 |
| Technique | 1.73 | 0.5789 |
| Scale | 1.35 | 0.7405 |