| Value | Category |
|---|---|
| 1 | lack of control |
| 2 | no tax penalty |
| 3 | unemployment |
| 4 | illegal work |
| 5 | easy to start |
| 6 | no measure taken on illegally |
| 7 | illegal trade |
| 8 | i do not know |
| 9 | tax increase |
| 10 | because of problems |
| 11 | fear of tax |
| 12 | can be done by both sex |
| 13 | educated no job |
| 14 | government contribution |
| 15 | population increase |