| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know | 1 |
0.6%
|
| -8 | Refused | 0 |
0%
|
| -5 | Not applicable | 0 |
0%
|
| -3 | Missing | 0 |
0%
|
| 1 | Yes | 6 |
3.6%
|
| 2 | No | 161 |
95.8%
|
| Sysmiss | 831 |