| Value | Category | Cases | |
|---|---|---|---|
| 1 | More than five years younger | 9 |
4.6%
|
| 2 | Between 1 and 5 years younger | 109 |
56.2%
|
| 3 | About the same age | 29 |
14.9%
|
| 4 | Between 1 and 5 years older | 31 |
16%
|
| 5 | More than five years older | 0 |
0%
|
| 9 | Missing | 16 |
8.2%
|
| Sysmiss | 989 |