| 项目 | 时间段 | ADF统计量Z(t) | P值 | 显著性水平 | 平稳性 | ||
| 1% | 5% | 10% | |||||
| HSR | 灾前 | −540.747 | 0.0000 | −3.430 | −2.860 | −2.570 | 平稳 |
| 灾后 | −435.334 | 0.0000 | −3.430 | −2.860 | −2.570 | 平稳 | |
| IFR | 灾前 | −410.328 | 0.0000 | −3.430 | −2.860 | −2.570 | 平稳 |
| 灾后 | −322.966 | 0.0000 | −3.430 | −2.860 | −2.570 | 平稳 | |