| Value | Category | Cases | |
|---|---|---|---|
| -9 | don't know | 0 |
0%
|
| -7 | not applicable | 6 |
6.3%
|
| 1 | yes | 16 |
16.7%
|
| 2 | no | 74 |
77.1%
|
| Sysmiss | 859 |