|
| Frequency | Percentage | Cumulative percentage |
| Administrative units | 40 | 18.1 | 18.1 |
| Public institutions | 70 | 31.8 | 49.9 |
| Enterprises | 80 | 36.4 | 86.3 |
| Farmers | 5 | 2.3 | 88.6 |
| Self-employed | 5 | 2.3 | 90.9 |
| Unemployed | 5 | 2.3 | 93.2 |
| Others | 15 | 6.8 | 100.0 |
| In total | 220 | 100.0 |
|