| 因素 | A | B | C | D | 合计 | 权重数 |
| A | 0 | 1 | 0 | 2 | 3 | 0.1 |
| B | 4 | 0 | 2 | 3 | 9 | 0.3 |
| C | 5 | 3 | 0 | 4 | 12 | 0.4 |
| D | 3 | 2 | 1 | 0 | 6 | 0.2 |
| 合计 | 12 | 6 | 3 | 9 | 30 | 1 |