Value | Category | Cases | |
---|---|---|---|
1999 | 1 |
25%
|
|
2003 | 1 |
25%
|
|
2011 | 1 |
25%
|
|
2013 | 1 |
25%
|
|
9998 | don't know | 0 |
0%
|
Sysmiss | 35779 |