| Value | Category | Cases | |
|---|---|---|---|
| 0 | No | 499 |
78.1%
|
| 1 | Yes | 134 |
21%
|
| 2 | Can't remember | 3 |
0.5%
|
| 7 | Not applicable | 0 |
0%
|
| 8 | Unknown | 0 |
0%
|
| 9 | Missing | 3 |
0.5%
|
| Sysmiss | 347 |