| Value | Category | Cases | |
|---|---|---|---|
| 1 | Convenience in work | 6296 |
21%
|
| 2 | Studying, training | 171 |
0.6%
|
| 3 | housekeeping | 235 |
0.8%
|
| 4 | Old, ill | 77 |
0.3%
|
| 5 | Others | 11 |
0%
|
| Sysmiss | 23209 |