| Cross- | ||||
| Method | Statistic | Prob.** | sections | Obs |
| Null: Unit root (assumes common unit root process) | ||||
| Levin, Lin & Chu t* | -12.5858 | 0 | 58 | 867 |
| Null: Unit root (assumes individual unit root process) | ||||
| Im, Pesaran and Shin W-stat | -8.6408 | 0 | 58 | 867 |
| ADF - Fisher Chi-square | 285.115 | 0 | 58 | 867 |
| PP - Fisher Chi-square | 319.044 | 0 | 58 | 928 |


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