| Value | Category | Cases | |
|---|---|---|---|
| -9 | missing | 0 |
0%
|
| -8 | dont know | 1 |
0.5%
|
| -7 | na | 0 |
0%
|
| 1 | yes | 3 |
1.6%
|
| 2 | no | 189 |
97.9%
|
| Sysmiss | 6 |