| Value | Category | Cases | |
|---|---|---|---|
| -99 | *Refused | 1 |
0.1%
|
| -98 | *Don't Know | 0 |
0%
|
| 0 | No | 1649 |
98.7%
|
| 1 | Yes | 20 |
1.2%
|
| Sysmiss | 6 |