| 成分 | 标准差 | 方差贡献率 | 累计方差贡献率 | 
| Comp.1 | 2.071 | 0.536 | 0.536 | 
| Comp.2 | 1.534 | 0.294 | 0.831 | 
| Comp.3 | 0.865 | 0.093 | 0.924 | 
| Comp.4 | 0.594 | 0.044 | 0.968 | 
| Comp.5 | 0.381 | 0.018 | 0.986 | 
| Comp.6 | 0.278 | 0.010 | 0.996 | 
| Comp.7 | 0.166 | 0.003 | 0.999 | 
| Comp.8 | 0.078 | 0.001 | 1.000 |