| Value | Category |
|---|---|
| 1 | Professionals |
| 2 | Senior Officials and Managers |
| 3 | Office Clerks |
| 4 | Commercial and Sales |
| 5 | Skilled Service Sector |
| 6 | Agricultural & Fishery Workers |
| 7 | Semi-Skilled Operatives |
| 8 | Drivers and Machine Operators |
| 9 | Unskilled Labourers |
| 100 | Inadequately Described or missing information |
| Sysmiss |