| Value | Category | 
|---|---|
| -999999999 | missing | 
| 1 | Wages and salaries from public sector | 
| 2 | Wages and salaries from private sector | 
| 3 | Farming | 
| 4 | Casual work | 
| 5 | Household business | 
| 6 | Pensions | 
| 7 | Remittances from abroad | 
| 8 | Other remittances | 
| 9 | Social assistance | 
| 98 | Other(Specify) |