| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know | 42 |
0.4%
|
| -8 | Refused | 18 |
0.2%
|
| -5 | Not applicable | 0 |
0%
|
| -3 | Missing | 0 |
0%
|
| 1 | Yes | 159 |
1.7%
|
| 2 | No | 9399 |
97.7%
|
| Sysmiss | 2277 |