| Value | Category | Cases | |
|---|---|---|---|
| 1 | Old/ illness | 2048 |
8.9%
|
| 2 | Housekeeping | 5158 |
22.5%
|
| 3 | Studying or Training | 6655 |
29%
|
| 4 | Others | 820 |
3.6%
|
| Sysmiss | 8274 |