| Variables name | Kind of test (C, T, K) | ADF test value | Comment |
| LNGDP/ D(LNGDP) | (C, T, 2)/(C, T, 2) | −4.25/−4.64** | Non-Stationary/Stationary |
| LNK/ D(LNK) | (C, T, 0)/(C, T, 0) | −2.70/−6.74*** | Non-Stationary/Stationary |
| LNL/ D(LNL) | (C, T, 6)/(C, T, 1) | −10.73/−10.76** | Non-Stationary/Stationary |
| LNP/ D(LNP) | (C, T, 0)/(C, T, 0) | −2.47/−5.18** | Non-Stationary/Stationary |
| LNE/D(LNE) | (C, T, 5)/(C, T, 4) | 0.24/−7.31** | Non-Stationary/Stationary |