| Value | Category | Cases | |
|---|---|---|---|
| 1 | YES | 21 |
3.9%
|
| 2 | NO | 499 |
93.3%
|
| 7 | DON'T KNOW | 15 |
2.8%
|
| 9 | REFUSED | 0 |
0%
|
| Sysmiss | 4036 |