| Value | Category |
|---|---|
| 1 | No technical education |
| 2 | Technical degree (graduate level) in agric./ engin./ techn./ IT/medicine/managm., etc |
| 3 | Technical degree (postgraduate and above) in agric./ engin./ techn./ IT/medicine/managm., etc |
| 4 | Diploma or certificate (below graduate level) in agric./ engin./ techn./ IT/medicine/managm., etc |
| 5 | Diploma or certificate (graduate level) in agric./ engin./ techn./ IT/medicine/managm., etc |
| 6 | Diploma or certificate (postgraduate and above) in agric./ engin./ techn./ IT/medicine/managm., etc |
| Sysmiss |