Value | Category | Cases | |
---|---|---|---|
-9 | Don't know | 1 |
16.7%
|
2002 | 1 |
16.7%
|
|
2005 | 2 |
33.3%
|
|
2006 | 1 |
16.7%
|
|
2008 | 1 |
16.7%
|
|
Sysmiss | 122 |