| Value | Category | Cases | |
|---|---|---|---|
| -9 | missing | 3 |
0.4%
|
| -8 | dont know | 0 |
0%
|
| -7 | na | 0 |
0%
|
| 1 | yes | 729 |
90.8%
|
| 2 | no | 71 |
8.8%
|
| Sysmiss | 1223 |