| Value | Category | Cases | |
|---|---|---|---|
| -98 | Don't know | 22 |
0.7%
|
| 0 | No | 2366 |
70.8%
|
| 1 | Yes | 953 |
28.5%
|
| 11 | .Z | 1564 | |
| Sysmiss | 1 |