| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know | 2 |
0.2%
|
| -7 | Not applicable | 0 |
0%
|
| 1 | Yes | 828 |
82.6%
|
| 2 | No | 172 |
17.2%
|
| Sysmiss | 1633 |