| Value | Category | Cases | |
|---|---|---|---|
| -9 | missing | 6 |
0.3%
|
| -8 | dont know | 0 |
0%
|
| -7 | na | 0 |
0%
|
| 1 | yes | 570 |
27%
|
| 2 | no | 1537 |
72.7%
|
| Sysmiss | 7 |