| SES | Frequency | % |
| Poorest | 20 | 0.2 |
| Poorer | 353 | 4.0 |
| Middle | 2765 | 31.0 |
| Richer | 4337 | 48.6 |
| Richest | 1444 | 16.2 |
| Total | 8919 | 100.0 |
| Missing | 1 | 0.0 |
| Total | 8920 | 100.0 |