| Value | Category | Cases | |
|---|---|---|---|
| 1 | Convenience in work | 5692 |
20%
|
| 2 | Studying, training | 224 |
0.8%
|
| 3 | housekeeping | 190 |
0.7%
|
| 4 | Old, ill | 77 |
0.3%
|
| 5 | Others | 27 |
0.1%
|
| Sysmiss | 22269 |