| Value | Category | Cases | |
|---|---|---|---|
| -97 | my whole life | 3 |
60%
|
| 1 | record years | 2 |
40%
|
| 2 | less than one year | 0 |
0%
|
| Sysmiss | Don't know | 0 | |
| Sysmiss | Not applicable | 0 | |
| Sysmiss | Others | 0 | |
| Sysmiss | Can't reveal | 0 | |
| Sysmiss | 4198 |