| Value | Category | Cases | |
|---|---|---|---|
| -66 | SKIP | 0 |
0%
|
| 0 | 230 |
7%
|
|
| 1 | yes | 373 |
11.3%
|
| 2 | no | 2701 |
81.7%
|
| 77 | refuse | 0 |
0%
|
| 88 | dont know | 0 |
0%
|
| 99 | missing | 0 |
0%
|
| Sysmiss | 1666 |