Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 1 |
20%
|
1991 | 1 |
20%
|
|
2008 | 1 |
20%
|
|
2018 | 1 |
20%
|
|
2019 | 1 |
20%
|
|
Sysmiss | 92 |