| Variables | ADF test value | The 5% level of confidence | The 10% level of confidence | Conclusion |
| LGDP | 0.553385 | −3.029970 | −2.655194 | unstable |
| LJCY | −0.466096 | −3.020686 | −2.650413 | unstable |
| DLGDP | −3.250449 | −3.029970 | −2.655194 | stable |
| DLJCY | −5.226985 | −3.029970 | −2.655194 | stable |