| Value | Category | Cases | |
|---|---|---|---|
| -9 | REFUSED | 0 |
0%
|
| 1 | YES | 270 |
4.3%
|
| 2 | NO | 5224 |
82.8%
|
| 7 | NOT APPLICABLE | 816 |
12.9%
|
| Sysmiss | 1 |