| 检验序列 | ADF统计量 | 临界值 | P值 | 结论(α = 0.05) | ||
| 1% | 5% | 10% | ||||
| L1 | −5.344 | −2.583593 | −1.943406 | −1.615024 | 0.0000 | 平稳 |
| L2 | −3.219 | −2.583593 | −1.943406 | −1.615024 | 0.0015 | 平稳 |