Null Hypothesis: LEC2 has a unit root
Exogenous: Constant, Linear Trend
Lag Length: 5 (Automatic based on SIC, MAXLAG=5)
t-Statistic Prob.*
Augmented Dickey-Fuller test statistic -5.955664 0.0008
Test critical values: 1% level -4.571559
5% level -3.690814
10% level -3.286909
*MacKinnon (1996) one-sided p-values.
Warning: Probabilities and critical values calculated for 20
observations and may not be accurate for a sample size of 18
Augmented Dickey-Fuller Test Equation
Dependent Variable: D(LEC2)
Method: Least Squares
Date: 09/15/09 Time: 10:41
Sample (adjusted): 1991 2008
Included observations: 18 after adjustments