| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know | 1 |
0.1%
|
| -8 | Refused | 0 |
0%
|
| -5 | Not applicable | 0 |
0%
|
| -3 | Missing | 0 |
0%
|
| 1 | Yes | 38 |
3.2%
|
| 2 | No | 1147 |
96.7%
|
| Sysmiss | 411 |