| Value | Category | Cases | |
|---|---|---|---|
| -99 | Don't know | 0 |
0%
|
| 1 | Days | 0 |
0%
|
| 2 | Weeks | 0 |
0%
|
| 3 | Months | 2 |
100%
|
| 4 | Years | 0 |
0%
|
| Sysmiss | 1190 |