请教一下高手，这个协整检验结果怎么解读呀？存在协整关系吗？
Pedroni Residual Cointegration Test     
Series: Y? X1? X2? X3?      
Date: 03/05/11   Time: 10:38     
Sample: 2003 2009     
Included observations: 7     
Cross-sections included: 44     
Null Hypothesis: No cointegration     
Trend assumption: No deterministic trend     
User-specified lag length: 1     
Newey-West automatic bandwidth selection and Bartlett kernel     
     
Alternative hypothesis: common AR coefs. (within-dimension)     
    Weighted
                            Statistic    Prob.     Statistic     Prob.
Panel v-Statistic  -2.247722  0.9877 -2.635732  0.9958
Panel rho-Statistic   4.076562  1.0000  4.478007  1.0000
Panel PP-Statistic  -15.96149  0.0000 -11.91294  0.0000
Panel ADF-Statistic  -6.403890  0.0000 -11.10163  0.0000
     
Alternative hypothesis: individual AR coefs. (between-dimension)     
     
                                   Statistic    Prob.  
Group rho-Statistic   7.472623  1.0000  
Group PP-Statistic  -16.83528  0.0000  
Group ADF-Statistic  -16.88900  0.0000