| Value | Category | Cases | |
|---|---|---|---|
| 1 | Old/ illness | 2063 |
8.7%
|
| 2 | Housekeeping | 5263 |
22.1%
|
| 3 | Studying or Training | 6970 |
29.2%
|
| 4 | Others | 1476 |
6.2%
|
| Sysmiss | 8070 |