Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 0 |
0%
|
1 | Less than one month | 1 |
5.6%
|
5 | 1 |
5.6%
|
|
6 | 1 |
5.6%
|
|
12 | One year or more | 15 |
83.3%
|
Sysmiss | 536 |