| Value | Category | Cases | |
|---|---|---|---|
| -99 | Refused | 1 |
0.1%
|
| 0 | No | 96 |
10.1%
|
| 1 | Yes | 853 |
89.7%
|
| 2 | 1 |
0.1%
|
|
| Sysmiss | 2156 |