| Variables | Inspection Type (c, t, k) | ADF t Values | 5% Critical Values | Stationartiy |
| lnGDP | (c, 1, 8) | −0.9799 | −3.5578 | Non-stationary |
| ΔlnGDP | (c, 0, 8) | −2.6865 | −2.6174 | Stationary |
| lnEX | (c, 0, 8) | −1.2861 | −3.5530 | Non-stationary |
| ΔlnEX | (c, 0, 8) | −7.3366 | −3.5578 | Stationary |
| lnIM | (c, 0, 8) | −1.2462 | −3.5530 | Non-stationary |
| ΔlnIM | (c, 0, 0) | −6.4999 | −3.5578 | Stationary |