| Value | Category | Cases | |
|---|---|---|---|
| 1 | Older | 0 |
0%
|
| 2 | Younger | 0 |
0%
|
| 3 | Same age | 0 |
0%
|
| 6 | Don't know | 0 |
0%
|
| 9 | Missing | 2 |
100%
|
| Sysmiss | 3617 |