| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 4 |
0.2%
|
| 0 | No | 2302 |
95.9%
|
| 1 | Yes | 74 |
3.1%
|
| 9 | Don't know | 20 |
0.8%
|
| 998 | Refused | 0 |
0%
|