| Variable | Levels | 1st Differencing | 2nd Differencing | |||
| FDI | Constant | Trend and Intercept | Constant | Trend and Intercept | Constant | Trend and Intercept |
| T-Statistic Values | −0.419862 | −1.676528 | −4.706985 | −4.608566 | −6.502578 | −6.434405 |
| Critical Values at 5% level | −2.971853 | −3.580623 | −2.976263 | −3.587527 | −2.986225 | −3.603202 |
| Probability | 0.8925 | 0.7348 | 0.0009 | 0.0054 | 0.0000 | 0.0001 |
| Critical Values | −3.5 | −3.5 | −3.5 | |||