| Value | Category | 
|---|---|
| 1 | Agriculture | 
| 2 | Mining/quarrying | 
| 3 | Manufacturing/processing | 
| 4 | Gas/Water/Electricity | 
| 5 | Construction | 
| 6 | Transport | 
| 7 | Buying and selling | 
| 8 | Personal services | 
| 9 | Education/Health | 
| 10 | Public adminisration | 
| 11 | Domestic duties | 
| 12 | Fishing | 
| 13 | |
| 97 | Other 1 (specify) | 
| 98 | Other 2 (specify) | 
| 99 | Other 3 (specify) | 
| Sysmiss |