Null Hypothesis: D (CPI) has a unit root

Exogenous: Cnostant

Lag length: 0 (Automatic-based on SIC, maxlag = 1)

t-Statistic

Prob.*

Augmented Dickey-Fuller test statistic

−3.603066

0.0346

Test critical values:

1% level

−4.582648

5% level

−3.320969

10% level

−2.801384