| Value | Category | Cases | |
|---|---|---|---|
| 1 | Convenience in work | 5921 |
21.8%
|
| 2 | Studying, training | 263 |
1%
|
| 3 | housekeeping | 332 |
1.2%
|
| 4 | Old, ill | 74 |
0.3%
|
| 5 | Others | 12 |
0%
|
| Sysmiss | 20533 |