| Value |
Category |
| 010 |
Some kindergarten |
| 018 |
Completed kindgergarten |
| 021 |
First year of primary school (3 years) |
| 022 |
Second year of primary school (3 years) |
| 023 |
Third year of primary school (3 years) |
| 028 |
Completed primary school (3 years) |
| 031 |
First year of primary school (6 years) |
| 032 |
Second year of primary school (6 years) |
| 033 |
Third year of primary school (6 years) |
| 034 |
Fourth year of primary school (6 years) |
| 035 |
Fifth year of primary school (6 years) |
| 036 |
Sixth year of primary school (6 years) |
| 038 |
Completed primary school (6 years) |
| 041 |
First year of general junior high school |
| 042 |
Second year of general junior high school |
| 043 |
Third year of general junior high school |
| 048 |
Completed general junior high school |
| 051 |
First year of general senior high school |
| 052 |
Second year of general senior high school |
| 053 |
Third year of general senior high school |
| 058 |
Completed general senior high school |
| 061 |
First year of vocational junior high school |
| 062 |
Second year of vocational junior high school |
| 063 |
Third year of vocational junior high school |
| 064 |
Fourth year of vocational junior high school |
| 068 |
Completed vocational junior high school |
| 071 |
First year of vocational senior high school |
| 072 |
Second year of vocational senior high school |
| 073 |
Third year of vocational senior high school |
| 074 |
Fourth year of vocational senior high school |
| 078 |
Completed vocational senior high school |
| 081 |
First year of academy |
| 082 |
Second year of academy |
| 083 |
Third year of academy |
| 084 |
Fourth year of academy |
| 088 |
Completed academy |
| 091 |
First year of university |
| 092 |
Second year of university |
| 093 |
Third year of university |
| 094 |
Fourth year of university |
| 095 |
Fifth year of university |
| 096 |
Sixth year of university |
| 097 |
Seventh year of university |
| 098 |
Completed university |
| 998 |
Unknown |
| 999 |
NIU (not in universe) |
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.