| Value | Category | Cases | |
|---|---|---|---|
| -9 | dont know | 2 |
9.1%
|
| -8 | ref | 0 |
0%
|
| 1 | yes | 3 |
13.6%
|
| 2 | no | 17 |
77.3%
|
| Sysmiss | 1410 |