| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes | 1662 |
11.4%
|
| 2 | No | 12873 |
88.2%
|
| 77 | Don't know | 20 |
0.1%
|
| 99 | Don't know | 33 |
0.2%
|
| Sysmiss | 20 |