| Value | Category | Cases | |
|---|---|---|---|
| -9 | REFUSED | 11 |
0.1%
|
| -7 | DON'T KNOW | 20 |
0.2%
|
| 1 | YES | 1458 |
18.2%
|
| 2 | NO | 6521 |
81.4%
|
| Sysmiss | 1 |