Null Hypothesis: EXR has a unit root

Exogenous: Constant, Linear Trend

Lag Length: 1 (Automatic—based on AIC, maxlag=4)

t-Statistic

Prob.*

Augmented Dickey-Fuller test statistic

−1.963052

0.6145

Test critical values:

1% level

−4.043609

5% level

−3.451184

10% level

−3.150986