| Value | Category | Cases | |
|---|---|---|---|
| -1 | missing value | 12 |
1%
|
| 0 | no | 143 |
11.9%
|
| 1 | yes | 36 |
3%
|
| 7 | not applicable | 1002 |
83.5%
|
| 9 | don't know | 7 |
0.6%
|