| Value | Category | Cases | |
|---|---|---|---|
| -9 | missing | 0 |
0%
|
| -8 | dont know | 0 |
0%
|
| -7 | na | 0 |
0%
|
| 1 | yes | 2 |
1.2%
|
| 2 | no | 166 |
98.8%
|
| Sysmiss | 31 |