| 指标 | X1 | X2 | X3 | X4 | X5 | X6 | X7 | X8 | X9 |
| 双边相关性 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 |
| Spearman | 0.798 | 0.765 | 0.808 | 0.811 | 0.828 | 0.812 | 0.780 | 0.770 | 0.804 |