| Value | Category | Cases | |
|---|---|---|---|
| -9 | missing | 0 |
0%
|
| -8 | dont know | 103 |
5.1%
|
| -7 | na | 0 |
0%
|
| 1 | yes | 423 |
20.9%
|
| 2 | no | 1500 |
74%
|