| Value | Category | Cases | |
|---|---|---|---|
| 0 | 2263 |
70%
|
|
| 1 | yes | 972 |
30%
|
| 2 | no | 0 |
0%
|
| 77 | refuse | 0 |
0%
|
| 88 | don't know | 0 |
0%
|
| 99 | missing | 0 |
0%
|
| Sysmiss | 1735 |