| Value | Category | Cases | |
|---|---|---|---|
| -999 | Don't know | 0 |
0%
|
| -777 | Not Applicable | 0 |
0%
|
| 0 | No | 563 |
98.9%
|
| 1 | Yes | 6 |
1.1%
|
| Sysmiss | 20 |