| Value | Category | Cases | |
|---|---|---|---|
| -99 | refused to answer | 0 |
0%
|
| 0 | No | 18 |
11.4%
|
| 1 | yes | 13 |
8.2%
|
| 999 | Not Applicable | 127 |
80.4%
|
| Sysmiss | 1 |