| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 4 |
0.1%
|
| 2 | no | 1105 |
21.6%
|
| 3 | Not applicable | 3990 |
78.2%
|
| 4 | No Answer / Refused to answer | 4 |
0.1%
|
| Sysmiss | 2 |