| Value | Category | Cases | |
|---|---|---|---|
| -9 | REFUSED | 1 |
0%
|
| 1 | YES | 254 |
6.7%
|
| 2 | NO | 3470 |
91.3%
|
| 7 | NOT APPLICABLE | 75 |
2%
|
| Sysmiss | 4211 |