Value | Category | Cases | |
---|---|---|---|
-99 | Don't know | 0 |
0%
|
-9 | Don't know (spontaneous) | 0 |
0%
|
18 | 1 |
7.1%
|
|
20 | 1 |
7.1%
|
|
21 | 8 |
57.1%
|
|
22 | 4 |
28.6%
|
|
Sysmiss | 1006 |