Value | Category | Cases | |
---|---|---|---|
-2 | don't know | 14 |
56%
|
1970 | 2 |
8%
|
|
1980 | 4 |
16%
|
|
1985 | 1 |
4%
|
|
1987 | 1 |
4%
|
|
1990 | 2 |
8%
|
|
2006 | 1 |
4%
|
|
Sysmiss | 1024 |