| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | No | 1994 |
83.1%
|
| 1 | Yes | 395 |
16.5%
|
| 9 | Don't know | 11 |
0.5%
|
| 998 | Refused | 0 |
0%
|