|   协整方程个数  |       特征值  |       最大特征值  |       5%临界值  |       Prob.**  |    
|   None  |       0.663247  |       26.12171  |       21.13162  |       0.0091  |    
|   At most 1  |       0.44678  |       14.208  |       14.2624  |       0.051  |    
|   At most 2  |       0.219109  |       5.935674  |       3.841466  |       0.0148  |