| Value | Category | Cases | |
|---|---|---|---|
| 0 | No | 37 |
97.4%
|
| 1 | Yes | 1 |
2.6%
|
| 7 | Not applicable (not South African) | 0 |
0%
|
| 9 | Don't know | 0 |
0%
|
| Sysmiss | 2017 |