| 变量 | M | P | C | SC | T | G | Z | I | S |
| 方差贡献率 | 0.64884 | 0.23785 | 0.06140 | 0.02369 | 0.01428 | 0.00752 | 0.00425 | 0.00163 | 0.00055 |
| 累计贡献率 | 0.64884 | 0.88668 | 0.94809 | 0.97177 | 0.98605 | 0.99357 | 0.99782 | 0.99945 | 1.00000 |