| Father’s status | Son’s status | Total | ||
| High | Middle | Low | ||
| High | 29 | 99 | 4 | 132 |
| Middle | 76 | 1052 | 41 | 1169 |
| Low | 42 | 667 | 298 | 1007 |
| Total | 147 | 1818 | 343 | 2308 |