| Value | Category | Cases | |
|---|---|---|---|
| -9 | REFUSED | 15 |
0.2%
|
| 1 | YES | 1283 |
16%
|
| 2 | NO | 6527 |
81.5%
|
| 7 | NOT APPLICABLE | 181 |
2.3%
|
| Sysmiss | 5 |