| Value | Category | Cases | |
|---|---|---|---|
| 1 | Old/ill | 1687 |
5.8%
|
| 2 | Home making | 6411 |
21.9%
|
| 3 | Study | 11048 |
37.8%
|
| 4 | Others | 800 |
2.7%
|
| Sysmiss | 9296 |