| Value | Category | Cases | |
|---|---|---|---|
| 0 | 1 |
0%
|
|
| 1 | Yes | 2894 |
15.3%
|
| 2 | No | 6243 |
33.1%
|
| 3 | Don't know | 9746 |
51.6%
|
| Sysmiss | 914 |