| Value | Category |
|---|---|
| 1 | Not Graduated |
| 2 | Elementrary School |
| 3 | Primary School |
| 4 | Secondary School |
| 5 | High School and Equivalent |
| 6 | High School Completed, Including Professional Secondary Educ |
| 7 | College/University Completed |
| 8 | Post Graduate Degree Completed |
| 77 | Don't Know |
| 99 | Refused |