| Value | Category | Cases | |
|---|---|---|---|
| 1 | YES | 455 |
9.8%
|
| 2 | NO | 4140 |
89.4%
|
| 7 | DON'T KNOW | 33 |
0.7%
|
| 9 | REFUSED | 4 |
0.1%
|
| Sysmiss | 7012 |