| Value | Category | Cases | |
|---|---|---|---|
| 1 | Years | 1 |
0%
|
| 2 | Months | 0 |
0%
|
| 3 | Weeks | 0 |
0%
|
| 77 | Don’t know\Don't remember | 2 |
0%
|
| Sysmiss | 7706 |