Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 0 |
0%
|
1 | 1 |
25%
|
|
2 | 1 |
25%
|
|
15 | 1 |
25%
|
|
31 | 1 |
25%
|
|
Sysmiss | 357 |