Value | Category | Cases | |
---|---|---|---|
-2 | don't know | 3 |
42.9%
|
-1 | 1 |
14.3%
|
|
1989 | 1 |
14.3%
|
|
2004 | 1 |
14.3%
|
|
2009 | 1 |
14.3%
|
|
Sysmiss | 1042 |