| Value | Category | Cases | |
|---|---|---|---|
| 1 | Convenience in work | 21191 |
18.1%
|
| 2 | Studying, training | 1247 |
1.1%
|
| 3 | housekeeping | 1613 |
1.4%
|
| 4 | Old, ill | 557 |
0.5%
|
| 5 | Others | 548 |
0.5%
|
| Sysmiss | 92003 |