| Value | Category | Cases | |
|---|---|---|---|
| 1 | Convenience in work | 5815 |
19.7%
|
| 2 | Studying, training | 148 |
0.5%
|
| 3 | housekeeping | 336 |
1.1%
|
| 4 | Old, ill | 140 |
0.5%
|
| 5 | Others | 28 |
0.1%
|
| Sysmiss | 23057 |