| Value | Category | Cases | |
|---|---|---|---|
| -9 | missing | 5 |
0.2%
|
| -8 | dont know | 0 |
0%
|
| -7 | na | 0 |
0%
|
| 1 | yes | 503 |
23.7%
|
| 2 | no | 1612 |
76%
|