| Value | Category | Cases | |
|---|---|---|---|
| 1 | Convenience in work | 5349 |
18.3%
|
| 2 | Studying, training | 216 |
0.7%
|
| 3 | housekeeping | 333 |
1.1%
|
| 4 | Old, ill | 135 |
0.5%
|
| 5 | Others | 178 |
0.6%
|
| Sysmiss | 23031 |