| Value | Category | Cases | |
|---|---|---|---|
| -9 | don't know | 0 |
0%
|
| -7 | not applicable | 2 |
8.7%
|
| 1 | yes | 10 |
43.5%
|
| 2 | no | 11 |
47.8%
|
| Sysmiss | 1972 |