| 主成分 | ||||
| C1 | C2 | C3 | C4 | |
| ZAI | 0.979 | 0.107 | 0.172 | −0.022 |
| ZCPI | −0.420 | 0.907 | 0.017 | −0.001 |
| ZAG | 0.979 | 0.130 | 0.154 | 0.023 |
| ZEC | −0.928 | −0.161 | 0.336 | 0.001 |