| Value |
Category |
| 00 |
NIU (not in universe) |
| 10 |
None |
| 20 |
Primary |
| 21 |
Primary, grade 1 |
| 22 |
Primary, grade 2 |
| 23 |
Primary, grade 3 |
| 24 |
Primary, grade 4 |
| 25 |
Primary, grade 5 |
| 26 |
Primary, grade 6 |
| 30 |
Junior high school |
| 31 |
Junior high school, grade 7 |
| 32 |
Junior high school, grade 8 |
| 33 |
Junior high school, grade 9 |
| 40 |
Senior high school |
| 41 |
Senior high school, grade 10 |
| 42 |
Senior high school, grade 11 |
| 43 |
Senior high school, grade 12 |
| 50 |
Technical/vocational |
| 60 |
University |
| 61 |
University, year 1 |
| 62 |
University, year 2 |
| 63 |
University, year 3 |
| 64 |
University, year 4 |
| 65 |
University, year 5 |
| 66 |
University, completed |
| 70 |
Post-graduate and higher |
Warning: these figures indicate the number of cases found in the data file. They cannot be interpreted as summary statistics of the population of interest.