| Value | Category | Cases | |
|---|---|---|---|
| -9 | missing | 0 |
0%
|
| -8 | dont know | 0 |
0%
|
| -7 | na | 0 |
0%
|
| 0 | no | 110 |
88%
|
| 1 | yes | 15 |
12%
|
| Sysmiss | 74 |