| Value | Category | Cases | |
|---|---|---|---|
| -9 | REFUSED | 31 |
0.3%
|
| -7 | DON'T KNOW | 420 |
3.9%
|
| 1 | YES | 421 |
3.9%
|
| 2 | NO | 9802 |
91.8%
|
| Sysmiss | 3 |