数据序列明显呈上升趋势，很显然是非平稳数据，结果ADF检验结果是平稳的。结果如下：
Null Hypothesis: ANHUISHENQING has a unit root   
Exogenous: Constant   
Lag Length: 4 (Automatic based on SIC, MAXLAG=5)   
   
   t-Statistic   Prob.*
   
Augmented Dickey-Fuller test statistic   -3.460129  0.0201
Test critical values: 1% level  -3.788030
5% level  -3.012363
10% level  -2.646119
   
*MacKinnon (1996) one-sided p-values.   
   
   
Augmented Dickey-Fuller Test Equation   
Dependent Variable: D(ANHUISHENQING)   
Method: Least Squares   
Date: 08/21/13   Time: 14:33   
Sample (adjusted): 1990 2010   
Included observations: 21 after adjustments   
   
Variable Coefficient Std. Error t-Statistic Prob.  
   
ANHUISHENQING(-1) -1.131224 0.326931 -3.460129 0.0035
D(ANHUISHENQING(-1)) 0.762713 0.626704 1.217024 0.2424
D(ANHUISHENQING(-2)) 8.647974 0.654354 13.21605 0.0000
D(ANHUISHENQING(-3)) -0.850214 1.766180 -0.481386 0.6372
D(ANHUISHENQING(-4)) 7.046567 1.870314 3.767584 0.0019
C -329.8894 396.8009 -0.831373 0.4188
   
R-squared 0.988804     Mean dependent var  2226.810
Adjusted R-squared 0.985072     S.D. dependent var  6707.156
S.E. of regression 819.4791     Akaike info criterion  16.49017
Sum squared resid 10073190     Schwarz criterion  16.78861
Log likelihood -167.1468     Hannan-Quinn criter.  16.55494
F-statistic 264.9545     Durbin-Watson stat  2.055793
Prob(F-statistic) 0.000000   
   
如何解释牙？还有，我用1985年-2010年的数据做的ADF检验，eVIews实际却是用1990-2010年数据，是软件自动筛检数据的吗？求高手释疑！！！