| A9 | 
 | 0.52 | 
 | 0.44 | 
| A14 | 
 | 
 | 0.76 | 0.64 | 
| A12 | 
 | 
 | 0.65 | 0.49 | 
| A4 | 
 | 
 | 0.60 | 0.53 | 
| A31 | 
 | 
 | 0.52 | 0.48 | 
| A28 | 
 | 
 | 0.48 | 0.38 | 
| 特征值 | 9.70 | 1.39 | 1.02 | 
 | 
| 方差贡献率 | 41.84 | 7.71 | 6.38 | 
 | 
| 累积方差贡献率(%) | 41.84 | 49.55 | 55.93 | 
 |