| Value | Category | 
|---|---|
| 1 | NO SCHOOLING | 
| 2 | PRIMARY INCOMPLETE | 
| 3 | COMPLETE PRIMARY | 
| 4 | COMPLETE BASIC | 
| 5 | COMPLETE SECONDARY | 
| 6 | COMPLETE SECONDARY SPECIAL | 
| 7 | COMPLETE SECONTARY TECHNICAL | 
| 8 | HIGHER EDUCATION INCOMPLETE | 
| 9 | COMPLETE HIGHER EDUCATION | 
| 10 | GRADUATE SCHOOL | 
| Sysmiss |