| Value | Category |
|---|---|
| 1 | None |
| 2 | R1-R200 |
| 3 | R201-R500 |
| 4 | R501-R1 000 |
| 5 | R1 001-R1 500 |
| 6 | R1 501-R2 500 |
| 7 | R2 501-R3 500 |
| 8 | R3 501-R4 500 |
| 9 | R4 501-R6 000 |
| 10 | R6 001-R8 000 |
| 11 | R8 001-R11 000 |
| 12 | R11 001-R16 000 |
| 13 | R16 001-R30 000 |
| 14 | R30 001 or more |
| 15 | Do not know |
| 16 | Refuse |
| 88 | Not applicable |
| 99 | Unspecified |