| Value | Category | Cases | |
|---|---|---|---|
| 1 | Convenience in work | 6050 |
21.9%
|
| 2 | Studying, training | 283 |
1%
|
| 3 | housekeeping | 297 |
1.1%
|
| 4 | Old, ill | 165 |
0.6%
|
| 5 | Others | 30 |
0.1%
|
| Sysmiss | 20795 |