| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes | 50 |
2.4%
|
| 2 | No | 1970 |
95.9%
|
| 3 | Don't know | 34 |
1.7%
|
| 99 | 1 |
0%
|
|
| 0 | NR | 60 | |
| 9 | NA | 20 | |
| Sysmiss | 865 |