| Value | Category | Cases | |
|---|---|---|---|
| 0 | no | 471 |
10.3%
|
| 1 | yes | 4089 |
89.2%
|
| 8 | don't know | 22 |
0.5%
|
| 11 | .A | 2 | |
| Sysmiss | 31026 |