各位好心人可以帮我解释下kao检验的结果是什么意思吗？   
   t-Statistic Prob.
ADF   -8.182299  0.0000
   
Residual variance    7.63E-20
HAC variance    7.63E-20
   
Augmented Dickey-Fuller Test Equation   
Dependent Variable: D(RESID?)   
Method: Panel Least Squares   
Date: 02/17/12   Time: 15:22   
Sample (adjusted): 2003 2010   
Included observations: 8 after adjustments   
Cross-sections included: 14   
Total pool (unbalanced) observations: 86   
   
Coefficient Std. Error t-Statistic Prob.  
   
RESID?(-1) -1.299035 0.177501 -7.318472 0.0000
D(RESID?(-1)) 0.104158 0.117752 0.884552 0.3789
   
R-squared 0.598697     Mean dependent var  3.39E-11
Adjusted R-squared 0.593919     S.D. dependent var  7.47E-10
S.E. of regression 4.76E-10     Akaike info criterion  -40.06906
Sum squared resid 1.91E-17     Schwarz criterion  -40.01198
Log likelihood 1724.970     Hannan-Quinn criter.  -40.04609
Durbin-Watson stat 2.213516