| Value | Category | Cases | |
|---|---|---|---|
| 1 | Old/ illness | 1520 |
9.6%
|
| 2 | Housekeeping | 3711 |
23.4%
|
| 3 | Studying or Training | 4444 |
28.1%
|
| 4 | Others | 553 |
3.5%
|
| Sysmiss | 5608 |