| Variable | Test Statistic | T Statistics | Test result | ||
| Inspection type (c, t, k) | 1% Critical value | 5% Critical value | |||
| lnallconsumption | −1.000 | (c, t, 1) | −4.380 | −3.600 | Not smooth |
| Dlnallconsumption* | −3.997 | (c, t, 1) | −4.380 | −3.600 | Smooth |
| lnbeanimport | −0.638 | (c, t, 1) | −4.380 | −3.600 | Not smooth |
| Dlnbeanimport** | −4.712 | (c, t, 1) | −4.380 | −3.600 | Smooth |
| lnbeanimportother | −0.585 | (c, t, 1) | −4.380 | −3.600 | Not smooth |
| Dlnbeanimportother* | −4.214 | (c, t, 1) | −4.380 | −3.600 | Smooth |
| lnusabeanimport | −1.150 | (c, t, 1) | −4.380 | −3.600 | Not smooth |
| Dlnusabeanimport* | −3.944 | (c, t, 1) | −4.380 | −3.600 | Smooth |