| Value | Category | Cases | |
|---|---|---|---|
| 1 | Convenience in work | 5121 |
18.1%
|
| 2 | Studying, training | 122 |
0.4%
|
| 3 | housekeeping | 392 |
1.4%
|
| 4 | Old, ill | 128 |
0.5%
|
| 5 | Others | 129 |
0.5%
|
| Sysmiss | 22358 |