| 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 | Don't know | 
| 16 | Refuse | 
| 88 | Not applicable | 
| 99 | Unspecified |