| Value | Category | 
|---|---|
| 001 | Property owning: Merchants, manufacturers, agents, dealers | 
| 002 | Professionals, managers and supervisors | 
| 003 | White collar employees | 
| 004 | Artisanal occupations | 
| 005 | Semi-skilled and unskilled | 
| 006 | Labourer | 
| 007 | Servants | 
| 008 | Farmers | 
| 999 | Unknown and NIU |