| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know | 1 |
0.1%
|
| -8 | Refused | 3 |
0.3%
|
| -5 | Not applicable | 0 |
0%
|
| -3 | Missing | 6 |
0.5%
|
| 1 | Yes | 87 |
8%
|
| 2 | No | 994 |
91.1%
|
| Sysmiss | 12628 |