| Value | Category | Cases | |
|---|---|---|---|
| 1 | Old/ illness | 7728 |
8.3%
|
| 2 | Housekeeping | 19241 |
20.8%
|
| 3 | Studying or Training | 27381 |
29.6%
|
| 4 | Others | 4600 |
5%
|
| Sysmiss | 33642 |