| Value | Category | Cases | |
|---|---|---|---|
| -9 | REFUSED | 19 |
0.2%
|
| -7 | DON'T KNOW | 3252 |
30.5%
|
| 1 | YES | 5595 |
52.4%
|
| 2 | NO | 1805 |
16.9%
|
| Sysmiss | 6 |