| Value | Category | Cases | |
|---|---|---|---|
| 1 | 10 or more years older | 211 |
40.3%
|
| 2 | less than 10 years older | 245 |
46.8%
|
| 8 | older, don't know difference | 67 |
12.8%
|
| Sysmiss | 12392 |