| Value | Category | Cases | |
|---|---|---|---|
| 1 | Old/ illness | 2016 |
8.4%
|
| 2 | Housekeeping | 5279 |
22.1%
|
| 3 | Studying or Training | 7148 |
29.9%
|
| 4 | Others | 758 |
3.2%
|
| Sysmiss | 8739 |