| Variables | Augmented Dickey-Fuller | IO | |
| Levels | |||
| No Trend | Trend | ||
| LNAG | −0.151470 | −2.529907 | - |
| LNBM | −0.848819 | −3.039243 | - |
| LNLIR | −2.010094 | −1.857834 | - |
| LNGEA | −1.934129 | −1.861184 | - |
| LNDCP | −0.861408 | −2.690403 | - |