| Value | Category | Cases | |
|---|---|---|---|
| -97 | my whole life | 13 |
56.5%
|
| 1 | Record Years | 7 |
30.4%
|
| 2 | Less than one year | 3 |
13%
|
| Sysmiss | Don't know | 0 | |
| Sysmiss | Not applicable | 0 | |
| Sysmiss | Others | 0 | |
| Sysmiss | Can't reveal | 0 | |
| Sysmiss | 4180 |