| Value | Category | Cases | |
|---|---|---|---|
| 1 | Old/ illness | 1974 |
8.5%
|
| 2 | Housekeeping | 4944 |
21.3%
|
| 3 | Studying or Training | 6644 |
28.6%
|
| 4 | Others | 1143 |
4.9%
|
| Sysmiss | 8557 |