| Value | Category | Cases | |
|---|---|---|---|
| -9 | missing | 1 |
2.4%
|
| -8 | dont know | 1 |
2.4%
|
| -7 | na | 0 |
0%
|
| 1 | yes | 7 |
17.1%
|
| 2 | no | 32 |
78%
|
| Sysmiss | 158 |