| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes | 27 |
1.8%
|
| 2 | No | 0 |
0%
|
| 8 | Don't know | 1 |
0.1%
|
| 88 | N/A | 1503 |
97.7%
|
| 99 | Unknown | 7 |
0.5%
|
| Sysmiss | 43 |