| 主成分 | 特征值 | 贡献率(%) | 累计贡献率(%) | 
| Y1 | 2.937 | 58.738 | 58.738 | 
| Y2 | 1.91 | 38.203 | 96.94 | 
| Y3 | 0.127 | 2.54 | 99.481 | 
| Y4 | 0.023 | 0.465 | 99.946 | 
| Y5 | 0.003 | 0.054 | 100 |