| Value | Category | Cases | |
|---|---|---|---|
| -9 | REFUSED | 1 |
0%
|
| 1 | YES | 1192 |
18.9%
|
| 2 | NO | 5072 |
80.4%
|
| 7 | NOT APPLICABLE | 44 |
0.7%
|
| Sysmiss | 2 |