求高手解惑，我做了VAR模型，然后EVIEWS6.0确定最优滞后阶数是3阶的，是不是接下来JJ协整检验的滞后阶数就是3-1=2阶呢，这个选项Lags interval  是填（1 2）还是填（2 2）？下面是我填（1 2）出来的结果 。请问这个结果拒绝了NONE,也拒绝了AT most 2，意味着什么呢？还有钥匙NONE,AT most 1,AT most 2都拒绝的话意味着什么呢？

Date: 10/04/12   Time: 20:47   
Sample (adjusted): 1993 2011   
Included observations: 19 after adjustments   
Trend assumption: Linear deterministic trend   
Series: LNEX LNGDP LNIM     
Lags interval (in first differences): 1 to 2   
   
Unrestricted Cointegration Rank Test (Trace)   
   
Hypothesized  Trace 0.05
No. of CE(s) Eigenvalue Statistic Critical Value Prob.**
   
None *  0.989851  100.1158  29.79707  0.0000
At most 1  0.379038  12.89808  15.49471  0.1186
At most 2 *  0.183200  3.844857  3.841466  0.0499
   
Trace test indicates 1 cointegrating eqn(s) at the 0.05 level   
* denotes rejection of the hypothesis at the 0.05 level   
**MacKinnon-Haug-Michelis (1999) p-values   
   
Unrestricted Cointegration Rank Test (Maximum Eigenvalue)   
   
Hypothesized  Max-Eigen 0.05
No. of CE(s) Eigenvalue Statistic Critical Value Prob.**
   
None *  0.989851  87.21767  21.13162  0.0000
At most 1  0.379038  9.053227  14.26460  0.2817
At most 2 *  0.183200  3.844857  3.841466  0.0499