| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know | 19 |
0.2%
|
| -8 | Refused | 17 |
0.2%
|
| -5 | Not applicable | 0 |
0%
|
| -3 | Missing | 4 |
0%
|
| 1 | Yes | 172 |
1.8%
|
| 2 | No | 9408 |
97.8%
|
| Sysmiss | 2275 |