| Value | Category | Cases | |
|---|---|---|---|
| 1 | YES | 4 |
0.1%
|
| 2 | NO | 3702 |
87.2%
|
| 7 | DON'T KNOW | 537 |
12.6%
|
| 9 | REFUSED | 4 |
0.1%
|
| Sysmiss | 3 |