第一次做单位根检验~不知道怎么分析~求大神指点下下~~

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Pool unit root test: Summary
Date: 07/15/13   Time: 19:39
Sample: 2006 2011
Series: Y600078, Y600141, Y600143, Y600146, Y600160, Y600227,
Y600230, Y600389, Y600423, Y600426, Y600469, Y600470,
Y600480, Y600486, Y600527, Y600589, Y600596, Y600618,
Y600636, Y600725, Y600731, Y600746, Y600810, Y600889,
Y600985, Y000059, Y000407, Y000422, Y000510, Y000523,
Y000525, Y000553, Y000565, Y000589, Y000599, Y000615,
Y000619, Y000627, Y000635, Y000659, Y000687, Y000698,
Y000731, Y000755, Y000782, Y000819, Y000830, Y002018,
Y002054, Y002061
Exogenous variables: Individual effects
Automatic selection of maximum lags
Automatic selection of lags based on SIC: 0
Newey-West bandwidth selection using Bartlett kernel
Balanced observations for each test
			Cross-
Method	Statistic	Prob.**	sections	Obs
Null: Unit root (assumes common unit root process)
Levin, Lin & Chu t*	-9.14764	0.0000	50	250
Breitung t-stat	-1.39469	0.0816	50	200
Null: Unit root (assumes individual unit root process)
Im, Pesaran and Shin W-stat	-1.16947	0.1211	50	250
ADF - Fisher Chi-square	120.375	0.0808	50	250
PP - Fisher Chi-square	157.099	0.0002	50	250
Null: No unit root (assumes common unit root process)
Hadri Z-stat	7.73405	0.0000	50	300
** Probabilities for Fisher tests are computed using an asympotic Chi
-square distribution. All other tests assume asymptotic normality.

就是这样~~不知道这么多种检验结果不一样的话~~应该看哪一种~~算不算数据平稳呀~
我问同学说~~一般只用ADF一种来检验是这样吗？
求大声指点下下~~

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关键词：单位根检验 不知道 distribution observations observation

不要一组变量一起进行平稳性检验，需要一个一个进行检验，原假设是被检验的序列含有一个单位根