Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 2 |
8%
|
0 | None | 20 |
80%
|
7 | 1 |
4%
|
|
10 | 1 |
4%
|
|
20 | 1 |
4%
|
|
Sysmiss | 89 |