| Value | Category | 
|---|---|
| 1 | no level completed (did not complete primary) | 
| 2 | low primary completed | 
| 3 | high/ upper primary certificate | 
| 4 | 2 yr vocational certificate | 
| 5 | 3 yr vocational certificate | 
| 6 | 4 yr vocational certificate | 
| 7 | gymnasium diploma | 
| 8 | islamic or orthodox secondary certificate | 
| 9 | post secondary speacialist vocational certificate | 
| 10 | professional 2 year college diploma | 
| 11 | bachelor degree | 
| 12 | bachelor degree- medical, pharmacy, stomatology | 
| 13 | specialization certificate - medical, pharmacy, stomatology - vocational- bachelor pre-requisite | 
| 14 | masters degree | 
| 15 | one year specialist diploma | 
| 16 | doctorate | 
| Sysmiss |