| Value | Category | Cases | |
|---|---|---|---|
| 0 | 517 |
99.8%
|
|
| 1 | no | 1 |
0.2%
|
| 2 | yes | 0 |
0%
|
| 7 | refused | 0 |
0%
|
| 8 | don’t know | 0 |
0%
|
| 9 | missing | 0 |
0%
|
| Sysmiss | 5373 |