请问这个检验是通过了吗?存在单位根吗?
. xtunitroot llc lnreward
Levin-Lin-Chu unit-root test for lnreward
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Ho: Panels contain unit roots Number of panels = 22
Ha: Panels are stationary Number of periods = 18
AR parameter: Common Asymptotics: N/T -> 0
Panel means: Included
Time trend: Not included
ADF regressions: 1 lag
LR variance: Bartlett kernel, 8.00 lags average (chosen by LLC)
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Statistic p-value
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Unadjusted t -0.5032
Adjusted t* 1.9019 0.9714
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