| Value | Category | Cases | Weighted | |
|---|---|---|---|---|
| 1 | never been | 7530 | 12204998 |
21%
|
| 2 | have been to school in the past | 16405 | 26624137 |
45.9%
|
| 3 | studying at present | 11191 | 19172413 |
33.1%
|
| Sysmiss | 14060 | 22059834 |