| Value | Category | Cases | |
|---|---|---|---|
| 1 | Old/ill | 1670 |
5.8%
|
| 2 | Home making | 6317 |
21.8%
|
| 3 | Study | 10634 |
36.7%
|
| 4 | Others | 893 |
3.1%
|
| Sysmiss | 9431 |