| Value | Category | Cases | |
|---|---|---|---|
| -999 | Don't know | 0 |
0%
|
| -888 | Not available | 1 |
0%
|
| 1 | Yes | 313 |
6.2%
|
| 2 | No | 4709 |
93.7%
|
| Sysmiss | 956 |