| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not applicable | 0 |
0%
|
| 2 | Respondent refuses to answer | 0 |
0%
|
| 3 | Respondent does not know | 0 |
0%
|
| 4 | 2012 | 1 |
33.3%
|
| 5 | 2015 | 1 |
33.3%
|
| 6 | 2016 | 1 |
33.3%
|
| Sysmiss | 2503 |