| Value | Category | Cases | |
|---|---|---|---|
| 1 | Old/ illness | 1511 |
9.4%
|
| 2 | Housekeeping | 3736 |
23.2%
|
| 3 | Studying or Training | 4488 |
27.9%
|
| 4 | Others | 492 |
3.1%
|
| Sysmiss | 5882 |