| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes | 1636 |
19.5%
|
| 2 | No | 6681 |
79.4%
|
| 3 | Do not know | 71 |
0.8%
|
| 9 | Unspecified | 22 |
0.3%
|
| Sysmiss | 201507 |