| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 22 |
1.8%
|
| 0 | No | 438 |
36.5%
|
| 1 | Yes | 740 |
61.7%
|
| 9 | Don't know | 0 |
0%
|
| 998 | Refused | 0 |
0%
|