| Value | Category | Cases | |
|---|---|---|---|
| 1 | Old/ illness | 2047 |
8.8%
|
| 2 | Housekeeping | 5073 |
21.8%
|
| 3 | Studying or Training | 6879 |
29.5%
|
| 4 | Others | 1022 |
4.4%
|
| Sysmiss | 8278 |