Value | Category | Cases | |
---|---|---|---|
-2 | don't know | 2 |
20%
|
1985 | 1 |
10%
|
|
1987 | 1 |
10%
|
|
1990 | 1 |
10%
|
|
1996 | 1 |
10%
|
|
2002 | 1 |
10%
|
|
2006 | 2 |
20%
|
|
2009 | 1 |
10%
|
|
Sysmiss | 1039 |