| Value | Category | Cases | |
|---|---|---|---|
| 0 | 1 |
0.1%
|
|
| 1 | Yes | 1668 |
99.2%
|
| 2 | No | 11 |
0.7%
|
| 8 | Don't know | 0 |
0%
|
| 9 | Missing | 1 |
0.1%
|
| Sysmiss | 1193 |