| Value | Category | Cases | |
|---|---|---|---|
| -9 | missing | 1 |
2.1%
|
| -8 | dont know | 0 |
0%
|
| -7 | na | 0 |
0%
|
| 0 | no | 36 |
76.6%
|
| 1 | yes | 10 |
21.3%
|
| Sysmiss | 152 |