| Value | Category | Cases | |
|---|---|---|---|
| 1 | Younger | 61 |
1.1%
|
| 2 | About the same age | 832 |
14.9%
|
| 3 | Older: less than 10 years | 3170 |
56.9%
|
| 4 | Older: 10 years or more | 1453 |
26.1%
|
| 5 | Older: don't know how much | 33 |
0.6%
|
| 8 | DK | 25 |
0.4%
|