| Sector | Population | Percentage | Sample size |
| Bakeries | 24 | 13 | 16 |
| Woodwork shops | 75 | 42 | 50 |
| Metalworks | 26 | 15 | 17 |
| Factories | 27 | 15 | 18 |
| Milling operations | 26 | 15 | 17 |
| Total | 178 | 100 | 118 |